What was found
FOUND NR 2 ENG HPTACC VALVE CRACKED AT VALVE BODY. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG HPTACC VALVE IAW AMM 75-21-01. OPS CHECK, LEAK CHECK GOOD. GROUND VERIFICATION TEST SUCCESSFUL.
- Difficulty date
- May 25, 2020
- Submitted
- May 27, 2020
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 16,705 hours, 5,291 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Valve
- Part number
- 1821M59P06
- Part serial
- GRT17333
- Condition
- Cracked
- Location
- Nr 2 Engine
- Part time
- 16,703 hours, 5,290 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.