What was found
CREW REPORT EMERGENCY LIGHTS FLASHED INTERMITTENTLY. OPERATION THEN CONTINUED NORMALLY. REPLACED DEFECTIVE SWITCH GUARD AT DOOR 1L EMERGENCY LTS ARMING SWITCH, ACCOMPLISHED EMERGENCY LIGHTS OPERATIONAL TEST. CHECKS OKAY.
- Difficulty date
- September 13, 2009
- Submitted
- September 17, 2009
- Operation
- Air carrier
- Aircraft
- N122UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29168
- Aircraft time
- 42,077 hours, 5,056 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Guard
- Part number
- 210011
- Condition
- Defective
- Location
- Switch
- 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.