Service difficulty report · Heat Exchanger · Boeing 757222
FAA SDR system
- Difficulty date
- August 28, 2009
- Submitted
- September 2, 2009
- Operation
- Air carrier
- Aircraft
- N598UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28751
- Aircraft time
- 42,175 hours, 11,718 cycles
- Engine
- Pwa PW2037
- Part
- Heat Exchanger
- Part number
- 1942704
- Part serial
- 154
- Condition
- Faulted
- Location
- Right
- Stage of operation
- CR
- 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.
What was found
RT PACK INOP RT PACK OFF LIGHT ON. RT PAC INOP. REPLACED COMP OUTLET OVERHEAT SWITCH, REPLACED PACK OVERHEAT SWITCH. REPLACED COMP OUTLET SENSOR. ACCMP PACK RUN AND CHECK. RT PACK INDICATION 30 DEGREES IN NORM WITH TEMP SEL 12 O'CLOCK. LT PACK INDICATION 10 DEGREES. THE LONGER THE RT PACK RUNS, THE GREATER THE PACK OUTLET TEMP DIFF. REPLACED H-E'S2 & ACP MM21-00-99 P601 AFTER REPLACEMENT.