What was found
DURING COMBUSTION HEATER PRESSURE DECAY TEST IAW AD2004-21-05, WE STILL TEST THE COMBUSTION AIR PRESSURE SWITCH WITH P/N 94E42, AND FOUND THAT MOST OF THE TIMES THE SWITCH FAILED OR NEEDED ADJUSTMENT.
- Difficulty date
- July 28, 2005
- Submitted
- July 28, 2005
- Operation
- General aviation
- System (JASC)
- 2140 · Heating System
- Part
- Pressure Switch
- Part number
- 94E42
- Condition
- Failed
- Location
- Heater
- Stage of operation
- NR
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.