17 July – 22 September 2015

1637

Air Cruisers Div of Garrett Corp 66536103 chain disconnected. SDR 510021558
Two life rafts (of 36) found with connector chain disconnected. P/No: 8947T24.

Battery damaged. SDR 510021505
When battery turned on, loud bang heard from forward avionics bay. Battery case found deformed and lid blown off. Determination that cells vented gas in battery box overnight. Combined with a finger tight terminal nut which caused arcing which in conjunction with the vented gas caused a contained explosion. P/No: 591285501. TSN: 9384 hours/7273 cycles TSO: 213 hours/154 cycles.

Magneto failed. SDR 510021835
Pilot reported engine would not run on left hand magneto during pre-flight run ups. Magneto removed and run on test bench .Nil operation below 1200 RPM. New Magneto installed engine operation now satisfactory. P/No: 4373. TSN: 373 hours/5 months.

Messierdowty ATR72 wheel cracked. SDR 510021636
During eddy current inspection per CMM 32-49-42 Rev 3, a crack approximately half an inch long was found within one of the tiebolt hole bores in the outer wheel half (P/No A36559-3). The crack is visible to the naked eye. No sign of damage to the wheel rim was detected. P/No: A365593. TSN: 2335 hours/2218 cycles TSO: 2335 hours/2218 cycles.

Messierdowty ATR72 wheel cracked. SDR 510021852
During dye penetrant inspection, a minor crack indication was found on the mating face, on the outer edge of the tiebolt hole bore in the outer wheel half (P/No A36559-3). The length of the crack is approximately 0.185 inches, with no indications that the crack has extended into the tiebolt hole bore. Date of manufacture was March 2012. No sign of damage to the wheel rim was detected. P/No: A365593. TSN: 3519 hours/2768 cycles TSO: 3519 hours/2768 cycles

 

SDR 510021579

Messier-Hispano ATR72 wheel cracked. SDR 510021579 (photo above)
Dye penetrant inspection revealed 1 inch crack from mating face to shoulder of tiebolt hole bores in outer wheel half. P/No: A365593. TSN: 3664 hours/3292 cycles TSO: 2988 hours/2675 cycles.

Unknown manufacturer KANNAD AF ELT failed. SDR 510021861
ELT case was well past its use by date however it had been re-batteried in 2013. The case damage would have been evident in 2013, it should have been replaced. Failed standard procedures as per CMM. The PCB when tested was drawing more than 50microamps. Failed standard procedures as per CMM. A waterproof test as required under the test procedures would have failed.Failed standard procedures as per CMM. The PCB counters were reading 55 tests and 36 406MHz activations so obviously the counters were not reset when the battery was changed. Failed standard procedures as per Kannad recommendations. P/No: 5182150202.

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