What was found
THE PILOT REPORTED A BURNING SMELL AFTER THE AUTOPILOT CB POPPED DURING FLIGHT. MAINTENANCE INSPECTED AND FOUND CHAFFED WIRING AT THE PTT SWITCH. THE WIRES WERE REPAIRED WITH NO FURTHER DEFECTS NOTED.
- Difficulty date
- March 9, 2021
- Submitted
- March 11, 2021
- Operation
- Air carrier
- Aircraft
- N740CA
- Make and model
- Cessna 402C
- Aircraft serial
- C4020277
- Aircraft time
- 27,613 hours, 12,228 cycles
- System (JASC)
- 2297 · Auto Flight System Wiring
- Part
- Wire
- Condition
- Chafed
- Location
- Ptt Switch
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.