What was found
DECLARED EMERGENCY DUAL BLEED TRIP FAILURE @ FL 410 RT BLEED TRIP LIGHT ILLUMINATED FOLLOWED BY LT BLEED TRIP LIGHT INITIATED EMERGENCY DESCENT. FOUND BAD PRECOOLER CONTROL VALVE. R & R NR 1 ENGINE PRECOOLER CONTROL VALVE IAW MM.
- Difficulty date
- November 12, 2013
- Submitted
- November 14, 2013
- Operation
- Air carrier
- Aircraft
- N766SW
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29806
- Aircraft time
- 49,088 hours, 28,639 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Control Valve
- Part number
- 32895625
- Part serial
- 8436
- Condition
- Faulty
- Location
- Bleed Air Sys
- Stage of operation
- UK
- 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.