# SDR 96ZZZX666

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N9132Y
- Make and model: Piper PA-31-310
- Registry model: [Piper PA-31-310](https://openairdocs.org/model/piper-pa-31-310) (OpenAirDocs)
- Aircraft serial: 31178
- System (JASC): [2842 · Fuel Quantity Sensor](https://openairdocs.org/jasc/2842)
- Part: Sender
- Part number: 4064803
- Condition: Wrong Part
- Location: Main Otbd
- Component: 40518XX
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX666

## Discrepancy

A MECHANIC WAS PERFORMING MX RUN-UP ON A STRAIGHT NAVAJO, WHEN BOTH ENGINES QUIT DUE TO FUEL STARVATION.  PRIOR TO THE RUN, HE HAD CHECKED FUEL QUANTITY INDICATORS, WHICH SHOWED ONE-FOURTH TANK IN EACH MAIN TANK.  THE MAIN (INBOARD) TANK HAS 2 SENDERS, AN INBOARD (40648-03) AND AN OUTBOARD (40648-02);  INBOARD SENDER IS LONGER THAN OUTBOARD.  INVESTIGATION SHOWED THAT IN THIS ACFT, THE 2 SENDERS HAD BEEN SWITCHED.  WHEN LONGER SENDER IS PUT IN OUTBOARD LOCATION, IT WILL HIT BOTTOM OF TANK, GIVING A FALSE ONE-FOURTH FULL INDICATION.  THIS IS SECOND TIME THIS CONDITION HAS BEEN FOUND IN THE LAST 6 WEEKS.  WHILE BOTH INCIDENTS INVOLVED 31-310'S, PARTS, & POTENTIAL FOR PROBLEM, IS SAME IN PA31350 CHIEFTANS.

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