What was found
#1 ENGINE HMU AS EVIDENCE OF LEAKAGE AROUND THE BASE AREA. REPLACEMENT TO BE ACCOMPLISHED ON ASA T/C N8473002, N8473003. GROUNDED - YES. REMOVED AND REPLACED HMU & HEAT EXCHANGER PER ASA T/C N8473003.
- Difficulty date
- August 21, 2022
- Submitted
- August 23, 2022
- Operation
- Air carrier
- Aircraft
- N472AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 60580
- Aircraft time
- 27,585 hours, 8,514 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 1853M56P16
- Part serial
- BECWC780
- Condition
- Leaking
- Location
- #1 Engine
- Part time
- 27,585 hours, 8,514 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.