What was found
ON ENG. #2 LONG TIME FAULT 73-31162 " THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE" DEFERRED PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED #2 ENG HMU IAW ASA T/C # N8473000 AND T/C # N8473001.
- Difficulty date
- April 13, 2019
- Submitted
- June 5, 2019
- Operation
- Air carrier
- Aircraft
- N518AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35693
- Aircraft time
- 39,129 hours, 11,648 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 442653
- Part serial
- BECW6002
- Condition
- Faulted
- Location
- Nr 2 Engine
- Part time
- 34,443 hours, 12,544 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.