What was found
DURING CLIMB & DESCENT, LEFT PRESSURE VARIES & SURGES 10 PSI TO 40 PSI TO 10 PSI, OPERATES NORMALLY ON GROUND AND CRUISE. REMOVED AND REPLACED LG PRSOV IAW AMM 36-11-09, OPS CHECKED GOOD.
- Difficulty date
- October 6, 2017
- Submitted
- October 9, 2017
- Operation
- Air carrier
- Aircraft
- N1229A
- Make and model
- Boeing 767306
- Aircraft serial
- 28884
- Aircraft time
- 66,680 hours, 14,202 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 77328810
- Part serial
- TLS22478
- Condition
- Malfunctioned
- Location
- Pnuematic Sys
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.