Service difficulty report · Shutoff Valve · Boeing 7377H4
FAA SDR system
- Difficulty date
- August 31, 2020
- Submitted
- September 4, 2020
- Operation
- Air carrier
- Aircraft
- N739GB
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29275
- Aircraft time
- 75,092 hours, 44,737 cycles
- Part
- Shutoff Valve
- Part number
- 32145526
- Part serial
- 3226
- Condition
- Leaking
- Location
- Nr 2 Engine
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- B
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSING FL 380 GOT CABIN ALT WARN + HORN PRES CONT WENT INTO WAN MODE. PASSENGER O2 DEPLOYED. C/W AMM 05-51-81 (CABIN DEPRESSUIRZATION CONDITIONAL INSPECTION) & AMM 05-51-91 (CABIN PRES LEAK TEST). FOUND #2 ENG PRSOV TO BE LEAKING, R+R #2 PRSOV PER AMM 36-11-04. OPERATIONS CHECK GOOD. C/W MT 721-00-01, MT 736-00-01, & 736-00-02. RAR# 70255 POS 2 TAG NO 713880 P/N OFF/ON 3214552-6 S/N OFF 3226 S/N ON 5934.