- Difficulty date
- February 1, 2020
- Submitted
- February 6, 2020
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43292
- Aircraft time
- 24,972 hours, 8,014 cycles
- Part
- Acm
- Part number
- 22064002
- Part serial
- 10131
- Condition
- Damaged
- Location
- Right
- Part time
- 24,984 hours, 8,018 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED FOR OVERHEAT CONDITION. GROUNDED - YES. RIGHT PACK TRIP DURING GROUND OPERATION. DETERMINED 390 DEGREE COMPRESSOR DISCHARGE SWITCH DETECTED OVERHEAT. WITH BOROSCOPE CONFIRMED AIR CYCLE MACHINE DAMAGE. REPLACED THE R/H A/C PACK ACM REF B737-900 AMM 21-51-04/401. LEAK AND OPS CHECK PASS.