What was found
IN FLIGHT WITH BOTH PACKS ON, THERE IS EXCESSIVE NOISE. WITH ONE PACK OFF, NOISE IS NORMAL. PERFORMED OPS TEST ON RT PACK WITH APU RUNNING IAW AMM 21-51-00.OPS CHECKED GOOD.
- Difficulty date
- December 17, 2019
- Submitted
- December 23, 2019
- Operation
- Air carrier
- Aircraft
- N1361A
- Make and model
- Boeing 76731B
- Aircraft serial
- 26265
- Aircraft time
- 90,854 hours, 19,814 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- A/C Pack
- Condition
- Noisy
- Location
- Both
- 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.