22 November 2016—7 February 2017

2038

BOEING 777 3ZGER–ATA 3320 PASSENGER COMPARTMENT LIGHTING–LAMP HOLDER–SHORT CIRCUIT. DR 611649367
Crew reported toilet 4L ceiling lamp arced at one end. Engineering confirmed the lamp connector was partially arced/burned. No evidence of damage was found in the surrounding areas. The lamp was removed and the associated connector was removed and capped.

FOKKER F28 1000–ATA 2510 CREW STATION EQUIPMENT SYSTEM–Cockpit door–JAMMED. DR 611649375
In flight, crew unable to open cockpit entrance door. Air return to departing base.

BOEING 747 48E–ATA 2750 TRAILING EDGE FLAP CONTROL SYSTEM–TIE ROD–FOULED. DR 611649377
During phase 1 over speed inspections, L/H wing inboard trailing edge fixed panel vertical tie rod at WBL 255 was found contacting flap torque tube.

BOEING 737 838–ATA 2780 LEADING EDGE SLAT CONTROL SYSTEM–CANISTER–Debris found. DR 611649396
During scheduled inspection of slat cans for debris, stop location lug from pre mod slat down lock assembly in slat # 5 O/B slat can was found. Moreover, stainless steel split pin was located in slat assembly #7 I/B slat can. Both items of debris removed from slat can(s) and no evidence of damage found.

BOEING 737 838–ATA 2797 FLIGHT CONTROLS WIRING–CONNECTOR–LOOSE. DR 611649409
On climb FL200 ‘stab out of trim’ light illuminated, ‘stab out of trim’ checklist completed with return to base planned. On descent to departing port, ‘stab out of trim’ light reilluminated. During the course of extensive troubleshooting, while shake down check of stab motor wiring, connector D318 and back shell inspected. Excessive movement of retaining ring and back shell was noted. Defect was physically confirmed. Stab trim motor connector D381 and back shell replaced IAW standard practices. Movement and sense independent inspection carried out.

BOEING 717 200–ATA 3213 MAIN LANDING GEAR STRUT/AXLE/TRUCK–BRACKET–INCORRECT FIT. DR 611649412
Hose support bracket located under MLG Torque Damper Nut found to be incorrectly positioned. Bracket was repositioned IAW AMM 32-33-XX. Hoses removed from top fitting to allow repositioning. Hoses refitted and lock checked. Brakes bled ref 32-43-XX.

BOEING 737 838–ATA 2730 ELEVATOR CONTROL SYSTEM–TRIM MOTOR–UNSERVICEABLE. DR 611649430
During crew pre-flight, both control column electrical switches were found unserviceable. FIM 27-41-XX carried out. Stab motor replaced and tested IAW AMM 27-41-71.

BOEING 737 7FE–ATA 3445 TRAFFIC COLLISION AVOIDANCE SYSTEM (TCAS)–ANTENNA–FAULTY. DR 611649443
Flight crew reported TCAS off displayed followed by TCAS and XPNDR fail illuminated. After 10 minutes systems restored. No previous history and there have been no repetitive occurrences. FIM 34–45 Task XX carried out. TCAS off MSG shows in both ATC positions. #1 and #2 ATC Transponders BITE shows Lower Antenna fault. Lower Antenna replaced per AMM 34-53-01-400-XX. Follow up BITE test OK.

EMBRAER ERJ170100–ATA 2210 AUTOPILOT SYSTEM–PITCH CONTROL–DISCONNECTED. DR 611649457
Pitch control found disconnected. Serviceable unit installed. Operation check carried out satisfactory.

BOEING 787 8–ATA 2913 HYDRAULIC PUMP, (ELECTRIC/ENGINE), MAIN-TUBE LEAKING. DR 611649464
Hydraulic leak (beyond limits) noticed from RH engine with quantity at 0.6. #2 Engine EDP Pressure tube replacement required.

EMBRAER ERJ190100–ATA 3240 LANDING GEAR BRAKE SYSTEM–SHUTOFF VALVE–LEAKING. DR 611649466
On landing, flight crew reported low pressure message on Hydraulic System #2. The associated system quantity was indicating 22% after landing. Troubleshooting found Brake Shutoff Valve #2 was leaking from a fitting to the valve body. The valve was replaced and tested satisfactory IAW AMM 32-41-03-XX.

AIRBUS A330 243–ATA 2565 ESCAPE SLIDE–BEARING–SEIZED. DR 611649467
During operational test of the L1 door slide/raft, the door failed to open and subsequently the slide failed to deploy. Troubleshooting traced defect to a seized door roller bearing. Roller bearing exercised, lubricated and roller function restored. Slide deployment test carried out again as per AMM 25-62-00-XX with normal door operation and normal slide deployment. New slide was installed as per AMM 25-62-41-XX. Independent inspection completed satisfactory.

EMBRAER ERJ190100–ATA 2620 EXTINGUISHING SYSTEM–EXTINGUISHER–DISCHARGED. DR 611649475
Rear lavatory fire extinguisher was observed to have discharged with no evidence of heat activation. Initially put on MEL 26-25-XX, was later replaced.

BOEING 717 200–ATA 2420 AC (ALTERNATING CURRENT) GENERATION SYSTEM–EPCU-CONTAM-WATER. DR 611749479
On take-off ‘Elec Fault’ annunciates followed by multiple electrical/system failures. Flight landed back at departing base. Initially, Power Conversion Distribution Unit fault was evident. Preliminary investigation found water intrusion (through FO sliding window) within the E&E bay. EPCU, PODS controller, VIA #1 were replaced. Experience will be shared with OEM as aeroplane post SB717-25-0013.

AIRBUS A330 303–ATA 2100 AIR CONDITIONING SYSTEM–BLEED AIR–CONTAMINATED. DR 611749485
During descent, an oily burning smell was noticed at R2. Troubleshooting completed IAW TSM 71-00-71-810-803A, no source of smell could be traced. Aircraft monitored for few flights, no reoccurrence.

BOEING 737 838–ATA 2100 AIR CONDITIONING SYSTEM–IFE slide table–Excess lubrication. DR 611749486
In cruise, strong chemical smell near L1 door was noticed. Further investigation localised smell to IFE compartment area. Closing sliding compartment door did not help. Later on, smell was identified to be coming from pull out slide table below IFE circuits. Slides for table appeared to be freshly lubricated. Excess lubricant removed & table cleaned. OK to continue. No further reports.

BOEING 737 838–ATA 7600 ENGINE CONTROLS–SCREW–FOD. DR 611749488
No. 2 engine start lever stiff movement into and out of idle detent position. After area open up, fault was traced to a stuck NAS standard screw in the start brake assembly. Origin of the screw could not be traced with reasonable certainty. All LRUs, electrical connectors removed for gaining access reinstalled and functional checks done satisfactory.

AIRBUS A330 202–ATA 4950 APU BLEED AIR SYSTEM–APU–Internally leaking. DR 611749499
Aircraft had history of smells in the cabin. Troubleshooting identified APU as possible source of bleed system contamination. All relevant maintenance completed. SME advised APU replacement.

EMBRAER ERJ170100–ATA 5300 FUSELAGE STRUCTURE (GENERAL)–FUSELAGE–BIRDSTRIKE. DR 611749503
Birdstrike reported on aircraft nose below co-pilot wind shield. Inspections carried out, nil defect evident.

BOEING 737 7FE–ATA 2760 DRAG CONTROL SYSTEM–PULLEY–BINDING. DR 611749508
During descent, shortly after passing FL110, AP engaged with LNAV/VNAV PATH modes, aircraft rolled to the right. At approximately 35 deg bank autopilot disconnected when correcting wings back to level. Some buffeting/rumble from wings, similar to speed brake effect was noted at the time. Immediately after regaining wings level, aircraft rolled to right again, however, not as far as first roll event and was able to be corrected by manual application of opposite roll. Buffeting was again noted. While troubleshooting spoiler systems, slight binding was felt in RH spoiler mechanical channel. RH wing spoiler cable run inspection performed IAW AMM 20-20-31/601. A pulley at wing station (WS) 253 on cable run WSA1 and WSA2 was showing signs of binding and dragging. Pulley (root cause) replaced with follow-up rigging and tension checks completed. Boeing recommendation to test the Digital Flight Control System IAW AMM 22-11-00 performed with nil defects noted. Aircraft returned to service. Local task card detailing inspection of spoiler cables at 2920 FC has been amended to include inspection of cable pulleys for condition and free rotation.

AIRBUS A320 232–ATA 3241 BRAKE ANTISKID SECTION–Anti skid release lights on–Debris guard damaged. DR 611749524
Crew reported ECAM brakes release appeared at approximately 1400 ft while preparing for landing. Crew performed go around, cleared ECAM messages and landed with nil further faults. Engineering carried out inspections and found no. 3 and 4 debris guards, Tachometer (20GG) damaged due major impact (suspect caused by power push). Tachometer (20GG), no. 3 and 4 wheel guards replaced. Functional check of no. 3 and 4 tachometer carried out satisfactorily and aircraft declared serviceable.

AIRBUS A320 232–ATA 2611 SMOKE DETECTION SYSTEM–CARGO HOLD–Smoke warning due fumigation. DR 611749525
Air return due momentary FWD cargo smoke ECAM while passing 9000 ft. Aircraft landed safely and engineering inspected cargo bays. Nil smoke evident on door opening and no fault found with smoke detection system. Fumigation, carried out before departure is believed to be the cause of spurious warning.

BOEING 757 236–ATA 5420 NACELLE/PYLON, MISCELLANEOUS STRUCTURE–fastener hole–CRACKED. DR 611749529
Crack found on fastener hole. It could be due to engine vibration or movement. Affected fastener hole reamed, installed freeze plug as per TC holder’s engineering disposition.

AIRBUS A320 232–ATA 3241 BRAKE ANTISKID SECTION–Power push unit–Debris guard damaged. DR 611749553
Crew reported ECAM brakes release appeared at approximately 1400 ft in flight. Crew performed go around, cleared ECAM messages and landed with nil further faults. Engineering carried out inspections and found no. 3 and 4 wheel guards, and Tachometer (20GG) damaged due major impact (suspect caused by power push). Tachometer (20GG), and no. 3 and 4 wheel guards replaced. Functional check of no. 3 and 4 tachometer carried out satisfactorily and aircraft declared serviceable. It is considered that the remotely operated Power Push Unit grazed the MLG Wheel Assembly Brake Fan Debris Guard causing the deformation and leading to the Tachometer (20GG) damaged via the connecting shaft between them. Ground operations instructed to advice personnel operating PPU to be aware that damage can occur when the PPU is not within the direct line of sight.

AIRBUS A330 202–ATA 2520 PASSENGER STATION EQUIPMENT SYSTEM–HINGE ARM–Caused injury. DR 611749554
Passenger’s finger injured after being caught in the seat XX video arm pivot point area. On inspection of the seat, it was noted that the video arm had no resistance to falling down from the deployed position. Investigations continuing.

EMBRAER ERJ190100–ATA 2761 DRAG CONTROL ACTUATOR–ACTUATOR–FAILED. DR 611749558
After landing, spoiler fault coupled with Hyd 1 Lo Qty, pressure triggered. During inspections, LH L3 multifunction spoiler found failed. Same replaced. Hydraulic System #1 was serviced per AMM 12-12-01-XX with nil faults. No previous history and investigations continuing.

AIRBUS A320 232–ATA 3242 BRAKE–BRAKE–BINDING. DR 611749605
During constant braking at the end of landing roll, a loud squealing noise was heard coming from brakes and aircraft pulled strongly to the left. Defect was traced to #1 brake unit binding. It was removed and replaced with a serviceable item. Additionally, LH MLG brake bleeding was carried out on the yellow and green systems. The aircraft was declared serviceable.

EMBRAER ERJ190100–ATA 2620 EXTINGUISHING SYSTEM–EXTINGUISHER–DISCHARGED. DR 611749609
Cabin crew reported, FWD lavatory waste bin fire extinguisher had discharged. MEL 26-25-XX was applied initially. Fire extinguisher was subsequently replaced and tested satisfactory per AMM 26-25-0X. MEL removed and aircraft released to service.

AIRBUS A320 232–ATA 3230 LANDING GEAR RETRACT/EXTENSION SYSTEM–RELAY–FAULTY. DR 611749619
Landing gear failed to extend when command on approach. Crew were able to go around and successfully carry out a manual gear extension. The aircraft landed safely. Gears normal configuration restored during maintenance. During troubleshooting, relay FIN 62GA was found to be faulty. Same replaced. No further defects and aircraft returned to service.

AIRBUS A320 232–ATA 2520 PASSENGER STATION EQUIPMENT SYSTEM–SEAT-LOOSE. DR 611749626
During overnight inspection of passenger seat mounts, engineering team found around 60% of the seats were loose in their tracks. Attempts were made to resecure seats but multiple set screws found sheared. Rectifications underway.

BOEING 737 3H6–ATA 5743 WING, LANDING GEAR ATTACH FITTINGS–FITTING–CORRODED. DR 611749636
During current check C inspections, RH Wing MLG Support Beam Stabilising Link Aft Fitting found corroded. Damaged part was replaced.

BOEING 757 236-ATA 5610 FLIGHT COMPARTMENT WINDOWS-WINDOW-CRACKED AND ARCING. DR 611749641
Crew reported L Fwd Window EICAS Message. On arrival, window inspected and found to have evidence of arcing on I/B lower corner (window heat connector) as well as crack along bottom edge. Window replaced.

EMBRAER ERJ190100–ATA 2760 DRAG CONTROL SYSTEM–HOSE–BURST. DR 611749643
After landing, multiple EICAS messages received, Ground Spoiler Fault–Flight Control No Dispatch–HYD SYS 1 QTY LO–HYD Sys 1 LO Press–QRH followed, aircraft parked, passengers disembarked without event. Engineering investigation identified hydraulic leak from a flex line to the LH OB GRD Spoiler actuator. Hose replaced IAW AMM 20-10-XX and 27-60-XX with nil leaks evident. Hydraulic system replenished and aircraft released to service.

BOEING 737 838–ATA 4930 APU ENGINE FUEL AND CONTROL–FUEL MANIFOLD–CRACKED. DR 611749644
Crew reported fuel smell in the cabin while on the ground prior to departure. Smell was traced to a cracked APU primary fuel manifold. Fuel leak was introduced into the APU intake due location. Primary fuel manifold replaced IAW AMM 49-31-XX.

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