What was found
AFTER TAKEOFF LEFT BLEED PRESSURE SURGING FROM 35 PSI TO 0 EVERY 10 SECONDS. LT ENG HPSOV LOCKED CLOSED. REMOVED AND REPLACED HIGH PRESSURE CONTROLLER IAW AMM 36-11-08, OPS CK AND LEAK CK OK.
- Difficulty date
- September 12, 2018
- Submitted
- September 17, 2018
- Operation
- Air carrier
- Aircraft
- N640GT
- Make and model
- Boeing 7673S1
- Aircraft serial
- 25221
- Aircraft time
- 86,774 hours, 18,435 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Controller
- Part number
- 77328915
- Part serial
- 930818
- Condition
- Defective
- Location
- Bleed Air Sys
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.