Service difficulty report · Position Switch · Boeing 727233

Difficulty date
August 25, 2000
Submitted
September 12, 2000
Operation
General aviation
Make and model
Boeing 727233
Aircraft time
59,608 hours
Engine
Pwa JT8D15
Part
Position Switch
Part number
1010153
Condition
Failed
Location
Spring Anchor
Part time
256 cycles
Component
Position Switch
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
L

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) FAILED NLG POS IND. SWITCH YIELDED FOLLOWING RESULTS. CURSORY INSP DETECTED INTERNAL RATTLE. WHEN CASE OPENED LOOSE DRIVE SCREW & SLEEVE (THIMBLE) WHICH COMPRISE SWITCH ARM SPRING ANCHOR ASSY WERE FOUND. THE CONTACTOR ASSY APPEARED TO BE IN AS NEW CONDITION. CLOSER EXAMINATION REVEALED DRIVE SCREW WHICH RETAINS SWITCH ARM SPRING ANCHOR THIMBLE APPEARED TO BE INADEQUATE.