SDR ASMF200802001

Service difficulty report · Proximity Switch · Doug DC983

Difficulty date: February 4, 2008
Submitted: February 6, 2008
Operation: Air carrier
Aircraft: N838AM
Make and model: Doug DC983
Aircraft serial: 49397
Aircraft time: 64,620 hours, 31,812 cycles
Engine: Pwa JT8D*
System (JASC): 3231 · Landing Gear Door Retract Section
Part: Proximity Switch
Condition: Malfunctioned
Location: Mlg Door
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.

What was found

DURING TRANSIT CHECK WAS DETECTED GEAR DOOR OPEN LIGHT TURNED ON. TECH VERIFIED TARGET SENSORS AND PERFORMED AUTO TEST TO THE PROXIMITY SWITCH, BUT LIGHT CONTINUED; SO PROXIMITY SWITCH WAS REPLACED IAW MM 36-60-04, REMAINING SAME CONDITION. AC WAS SENT TO THE HANGAR AND MAIN LANDING GEAR DOORS TARGET SENSOR WAS ADJUSTED IAW MM 32-60-05, TESTED CORRECT.

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