SDR QMLA2019050519045

Service difficulty report · Chip Detector · Bell 407

Difficulty date: May 5, 2019
Submitted: May 6, 2019
Operation: Air carrier
Aircraft: N398AM
Make and model: Bell 407
Aircraft serial: 54492
Aircraft time: 2,680 hours, 8,992 cycles
Engine time: 4,397 hours, 8,486 cycles
System (JASC): 6320 · Main Rotor Gearbox
Part: Chip Detector
Condition: Contaminated
Location: Gearbox
Part time: 10,043 hours
Stage of operation: AA
How discovered: O
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER MAIN GEARBOX TIME CHANGE. AIRCRAFT HAD CHIP LIGHT INDICATION AND DID A PRECAUTIONARY LANDING. PULLED, 3 EACH, CHIP DETECTORS PER MAINTENANCE MANUAL. INSPECTION REVEALED, 1 EACH, SMALL SLIVER PARTICLE. CLEANED AND PERFORMED GROUND RUN. AIRCRAFT RETURNED TO SERVICE.

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