What was found
CREW REPORTED LEFT ENGINE FLUCTUATES STARTING FL 330 & INTERMITTENTLY DURING CRUISE @ FL 340. EPR .04/ N1 .4. REMOVED AND REPLACED LEFT ENGINE 14TH STAGE BLEED VALVE IAW AMM 73-32-02.
- Difficulty date
- March 14, 2022
- Submitted
- April 8, 2022
- Operation
- Air carrier
- Aircraft
- N688SL
- Make and model
- Boeing 757230
- Aircraft serial
- 25140
- Aircraft time
- 99,203 hours, 25,475 cycles
- Engine
- Pwa PW2040
- Engine time
- 79,800 hours, 27,122 cycles
- System (JASC)
- 7532 · Compressor Bleed Valve
- Part
- Bleed Valve
- Part number
- 5840207104
- Part serial
- 0331
- Condition
- Unserviceable
- Location
- L Eng
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- S
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.