Service difficulty report · Duct · Boeing 757224

Difficulty date
July 6, 2026
Submitted
July 9, 2026
Operation
Air carrier
Aircraft
N34137
Make and model
Boeing 757224
Aircraft serial
30229
Aircraft time
92,005 hours, 21,884 cycles
Part
Duct
Condition
Leaking
Location
Rt A/C Pack
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

PILOTS STATED FLIGHT DECK TEMP AFTER TAKEOFF, CLIMBED TO 90 DEGREES. FOLLOWED CABIN TEMP HOT CHKLST. FLT DECK TEMP DID COME DOWN WITH PACK IN STANDBY COOL. AFT CABIN TEMP BEGAN TO RISE. SUGGESTED CLIMB TO CRUISE ALTITIDE & MONITIOR TEMP. AFTER, TEMPS TOO HIGH IN AFT & PAX COMPLAINED. FOUND LEAK, OPENING ON RT PACK OUTLET. ADJUSTED COVER & FIXED LEAK. FOUND A FAULT ON BITE TEST FOR RT PACK TEMP CONTROLLER. SECURED & CLAMPED DUCT ON RT PACK OUTLET. OPS CHKD GOOD. LEAK CHKD GOOD. DUE TO RT PACK BITE FAULT, R & R RT PACK TEMP SENSOR IAW AMM 21-51-08-404-028. OPS CHKD GOOD. NO MSG NOTED. PERFORMED OPS CHK OF RT PACK. OPS CHKD GOOD. ALL THREE ZONES SHOW GOOD AIRFLOW & COOLING. OK TO CONTINUE