What was found
THE -BLD 3 OVHT-PRV- EICAS MSG DISPLAYED AFTER ENG START. CYCLED C/B AND BLEED SW, NO HELP. REPLACED PRECOOLER PRESSURE REGULATOR CONTROLLER. OP CHECKED OK FOR SERVICE.
- Difficulty date
- December 31, 2006
- Submitted
- January 6, 2007
- Operation
- Air carrier
- Aircraft
- N107UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26900
- Aircraft time
- 33,985 hours, 4,256 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3620 · Pneumatic Indicating System
- Part
- Controller
- Condition
- Failed
- Location
- Precooler
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.