What was found
ETOPS SIGNIFICANT SYSTEM: BLEED TRIP OFF LIGHT ON EN ROUTE ENG NR 1. REMOVED AND REPLACED PRE-COOLER CONTROL VALVE IAW AMM 36-12-02. RAN ENG NO BLEED TRIP AT 80 PERCENT. NO DISCREPANCIES NOTED.
- Difficulty date
- November 3, 2011
- Submitted
- November 7, 2011
- Operation
- Air carrier
- Aircraft
- N734MA
- Make and model
- Boeing 7378Q8
- Aircraft serial
- 30039
- Aircraft time
- 29,293 hours, 10,575 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Control Valve
- Condition
- Malfunctioned
- Location
- Bleed Air Sys
- Stage of operation
- CR
- 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.