What was found
AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY ON ACCOUNT OF PRESSURIZATION ISSUE. LEFT ENGINE BLEED FAILURE AFTER RH BLEED ON MEL. MAINTENANCE REPLACED FAN AIR VALVE IAW AMM 36-11-16-404-096-001. OPS AND LEAK CHECK GOOD.
- Difficulty date
- May 30, 2019
- Submitted
- June 3, 2019
- Operation
- Air carrier
- Aircraft
- N938UW
- Make and model
- Boeing 7572B7
- Aircraft serial
- 27246
- Aircraft time
- 78,071 hours, 27,726 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Control Valve
- Part number
- 32896265
- Part serial
- 0605
- Condition
- Failed
- Location
- Lt Bleed Sys
- Part time
- 66,057 hours, 22,615 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.