What was found
WHILE PREFORMING T/C 78273000. FOUND LONGTIME FAULT ON #2 ENGINE MTX MSG 73-21162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- June 14, 2023
- Submitted
- June 27, 2023
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 26,586 hours, 8,327 cycles
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.