5 December 2017—9 February 2018

598

BOEING 737 8FE–ATA 3411 PITOT/STATIC SYSTEM–PROBE–BLOCKED. DR 611751236
Flight crew reported multiple ‘Airspeed Disagree’ messages displayed in flight NAN-SYD. ‘EEC ALTN’ and ‘Altitude Disagree’ also occurred during descent. Troubleshooting confirmed captain’s pitot probe was blocked with an unknown obstruction. Captain’s pitot probe was replaced and tested satisfactory per AMM 34-11-XX1. Both static systems pressurised and compared IAW AMM 34-13-XX without fault. Aircraft released to service.

DE HAVILLAND DHC8 402–ATA 3242 BRAKE–BRAKE–FIRE. DR 611851248
On aircraft taxi in and parking on bay, #3 wheel/brake fire observed. Ground crew used powder fire extinguisher to put out fire. Pilot reported that all indications were normal and once park brake was applied, ground staff noticed smoke from brake. Maintenance found #3 brake locked coupled with hydraulic leak. Moreover, # 2 hydraulic system was depleted. #3 wheel assembly deflated due over temp fuse plugs activated. Unable to determine root cause of brake fire. Suspect hydraulic leakage from brake on hot brake.

BAE BAE146 300–ATA 5345 FUSELAGE EQUIPMENT ATTACH FITTINGS–BOLT–MISSING. DR 611851267
During scheduled DV inspection of the main landing gear bay centre longeron, it was found that X2 inner attachment (failsafe) bolts were missing. On advice of BAE, suggested ultra-sonic and eddy current inspection of main bolts completed. Fleet wise inspection of affected hardware planned.

AIRBUS A320 232–ATA 5552 ELEVATOR/TAB, ATTACH FITTINGS–Hinge bearings–EXCESS-PLAY. DR 611851278
Reported airframe vibrations. Upon inspection, wear observed in all hinge bearings of both L/H and R/H elevators. All bearings will require replacement.

BOEING 737 7FE–ATA 2564 LIFERAFT–CYLINDER–LOW PRESSURE. DR 611851333
Fleet wise inspection of reservoir and valve assemblies (contained in life raft system) continuing. Inspection on aeroplane identified 300 PSI remaining in the cylinder (limit = 3110 +/- 100). Life raft was subsequently replaced. Zodiac Air Cruiser SIL 25-302 (Leakage pathways generated by OEM manufacturing and assembly processes) refers to reservoir pressure loss phenomena.

AIRBUS A321 231–ATA 5554 RUDDER/TAB, ATTACH FITTINGS–Hinge bearings–EXCESSIVE PLAY. DR 611851379
Inflight airframe vibrations, TSM followed, possible cause could be rudder hinge play. Number 1 rudder hinge bearing inspected, confirmed outside AMM limits. Rudder bearings 2, 3, 4, 5 & 7 found worn out and require replacement. All 1/2/3/4/5/7 rudder bearings have been replaced.

AIRBUS A330 303–ATA 2621 FIRE BOTTLE, FIXED–EXTINGUISHER–DISCHARGED. DR 611851419
During ‘A’ check, lav l62 water faucet waste bin fire extinguisher found low. Reported defect was found during routine inspection task. Extinguisher replaced.

AIRBUS A380 840–ATA 2810 FUEL STORAGE–FUEL TANK–Internal fuel leak. DR 611851420
LH inner fuel tank pump fault caused by fuel leaking into the inner tank during flight after the scheduled fuel transfer had taken place. The small quantity in the tank triggers the pump to run, however the small amount of fuel is not enough to prime the pump and after a period of time, the pump goes low pressure setting off an ECAM for a faulty pump. The cause of the fuel leaking into the inner tank was found to be coming from four bolts that had been removed from RIB 13 during a prior maintenance visit and when they were re-installed they were not sealed. During troubleshooting with the mid tank at max capacity of 28.600 kg fuel was leaking into the inner tank at a rate of 1 kg per minute. When the inner tank was accessed with the mid tank full, there was a leak from the bolts and a heavy spray of fuel, consistent with the capacity increase rate.

FOKKER F28 0100–ATA 2510 CREW STATION EQUIPMENT SYSTEM–INERTIA REEL–Adrift. DR 611851421
Flight crew reported that captain’s seat shoulder harness had come adrift from its inertia reel. Harness assembly was replaced with testing carried out without fault. Assembly declared serviceable. Reliability investigation into this occurrence has commenced in conjunction with the Original Equipment Manufacturer (OEM), with additional information to be disseminated as milestones are reached.

BAE BAE146 300–ATA 5345 FUSELAGE EQUIPMENT ATTACH FITTINGS–BOLT–MISSING. DR 611851439
Main landing gear bay centre longeron inner attachment (failsafe) bolts missing. Ultrasonic inspection of the main bolts and fluorescent magnetic partial inspection of the longeron fork end lug bores carried out with nil cracking evident. Corrosion evident in lug bores. Repair carried out in accordance with BAe repair document RA/RJ/XX. Longeron attachment bolts and failsafe bolts installed in accordance with production drawings. Fleet wide inspection conducted to ensure main landing gear bay centre longeron inner attachment (failsafe) bolts are installed on the remainder of the BAE 146/RJ fleet with nil defects reported.

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