What was found
CREW REPORTED NR 1 ENGINE NACELLE TEMP WENT TO TOP END OF SCALE. RETARDED THROTTLES, TEMP DECREASED. RETURNED TO RMS. FOUND NR 1 ENGINE PRESSURE RELIEF VALVE FAILED. REPLACED PER AMM 36-11-03. OPS OK.
- Difficulty date
- January 12, 2005
- Submitted
- January 26, 2006
- Operation
- Air carrier
- Aircraft
- N509MC
- Make and model
- Boeing 747230B
- Aircraft serial
- 21221
- Aircraft time
- 115,219 hours, 21,935 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Relief Valve
- Part number
- 3206247
- Part serial
- 637
- Condition
- Failed
- Location
- Nr 1 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- M, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.