What was found
WHILE ACCOMPLISHING T/C 78273000 #2 ENG HAS LONG TIME FAULT MSG 73-31162 THE MECHANICAL OVERSPEED PROTECTION IS OUT OF RANGE. GROUNDED - YES. RE-ACCOMPLISHED T/C 78273000 FOR #1 AND #2 ENGINES, NO FAULTS EITHER ENGINE,
- Difficulty date
- May 30, 2021
- Submitted
- July 13, 2021
- Operation
- Air carrier
- Aircraft
- N435AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43292
- Aircraft time
- 28,467 hours, 9,130 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Fault Message
- Condition
- False Indication
- Location
- Nr 2 Engine
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.