SDR AALA201910159020

Service difficulty report · Engine · Boeing 737823

Difficulty date: October 14, 2019
Submitted: October 15, 2019
Operation: Air carrier
Aircraft: N854NN
Make and model: Boeing 737823
Aircraft serial: 33214
Aircraft time: 28,811 hours, 11,656 cycles
Engine: Cfmint CFM567B242
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Unknown
Location: Nr 1
Stage of operation: TX
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

AIRCRAFT WAS GROUNDED: PILOT REPORTS UPON ENGINE SHUTDOWN THE NO.1 ENG DID NOT SHUT DOWN FOR APPROX. 15 SEC AFTER CUTOFF SELECTED. MAINTENANCE CHECKED HPSOV CONTROL POWER AT DP1203 LEFT HMU IAW FIM 73-06-00.VOLTAGE OK IN IDLE AND CUTOFF POSITIONS. CHECKED RESISTANCE OF HPSOV AT LEFT HMU IAW FIM 73-06-00. RESISTANCE WITHIN LIMITS AT DP1207. ACCOMPLISHED FIM 73-06-00 FOR TROUBLESHOOTING #1 ENGINE SHUTDOWN, RAN ENGINE SEVERAL TIMES, ENGINE SHUTDOWN NORMAL.