What was found
#1 HF/SAT XFER SWITCH WILL NOT LOCK IN SAT POSITION. GROUNDED - YES. CONFIRMED FAULT. REMOVED, REPLACED AND TESTED HF/SAT TRANSFER PANEL REF. B737-900 AMM 23-15-00-400-804. OPS. NORMAL. INSTALLED AND REMOVED.
- Difficulty date
- August 12, 2019
- Submitted
- August 15, 2019
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 13,887 hours, 4,482 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Switch
- Part number
- G716401
- Part serial
- 479
- Condition
- Inoperative
- Location
- Hf/Sat Transfer
- Part time
- 13,425 hours, 4,335 cycles
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.