What was found
CABIN TEMP ISSUES. RTFL. REPLACED ZONE TEMP CONTROLLER. NO VLV OR TEMP INDICATION AFT ZTC REPLACEMENT. ALL INDICATIONS AND VLV OPS CK'D OKAY.
- Difficulty date
- June 22, 2009
- Submitted
- June 24, 2009
- Operation
- Air carrier
- Aircraft
- N179UA
- Make and model
- Boeing 747422
- Aircraft serial
- 25158
- Aircraft time
- 76,471 hours, 9,374 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2161 · Cabin Temperature Controller
- Part
- Controller
- Part number
- 7968812005
- Part serial
- 117
- Condition
- Faulty
- Location
- Zone Temp
- Stage of operation
- CR
- 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.