SDR QXEA2022060900215

Service difficulty report · Powerplant · Bombdr DHC8402

Difficulty date: June 6, 2022
Submitted: June 9, 2022
Operation: Air carrier
Aircraft: N427QX
Make and model: Bombdr DHC8402
Aircraft serial: 4156
Aircraft time: 32,080 hours, 34,520 cycles
System (JASC): 6120 · Propeller Controlling System
Part: Powerplant
Condition: Activation Error
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

POWERPLANT MESSAGE ON FD DURING APPROACH. REMOVED FROM SERVICE. CDS SHOWS FAULT CODE 428 A/B #1 PROP. Q HI OUTPUT FAULT. C/W FIM TASK 61-20-09-810-815. FAULT CODES CLEARED PER AMM 61-20-36-070-801. C/W AUTO FEATHER /UPTRIM TEST PER AMM 61-20-00-710-810, OPS CHECK GOOD. FAULT CODE DID NOT RETURN. NO FAULT HISTORY FOR THIS DISCREPANCY. OK FOR CONTINUED SERVICE. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.