What was found
ON CLIMB, NR 3 ENGINE EPR STARTED DECREASING AT FL310 EPR IND., ON DESCENT IT READ HIGH (1.24 AT 150 WITH THRUST LEVERS IDLE) (CORRECTIVE ACTION) REPLACED EPR TRANSMITTER IAW MM 77-11-00 AND DEFERRED OPS CHECK IAW DDPG 77-4.
- Difficulty date
- December 12, 2005
- Submitted
- December 16, 2005
- Operation
- Air carrier
- Aircraft
- N921FT
- Make and model
- Boeing 747283B
- Aircraft serial
- 21575
- Aircraft time
- 66,147 hours, 14,774 cycles
- Engine
- Pwa JT9D70A
- Engine time
- 44,160 hours, 9,707 cycles
- System (JASC)
- 7711 · Engine Pressure Ratio (EPR)
- Part
- Transmitter
- Part number
- ED7472012
- Part serial
- CD4160
- Condition
- Failed
- Location
- Nr 3 Epr
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.