What was found
AFT CABIN TEMP EICAS MSG ABOUT 3 HOURS IN CRUISE. RAN QRH TEMP IN ZONE DROPPED A COUPLE OF DEGREES TO 21C. PERFORMED BITE TEST OF THE ZONE TEMP CONTROLLER IAW B767AMM 21-61-00. OPS CKS GOOD. COULD NOT DUPLICATE.
- Difficulty date
- September 29, 2021
- Submitted
- September 30, 2021
- Operation
- Air carrier
- Aircraft
- N1487A
- Make and model
- Boeing 76731K
- Aircraft serial
- 28865
- Aircraft time
- 18,973 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Controller
- Condition
- Erratic
- Stage of operation
- CR
- 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.