# SDR 97UAL900888

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N609UA
- Make and model: Boeing 767222
- Aircraft serial: 21870
- Engine: Pwa JT9D7R4D
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: Y35A
- Condition: Out Of Adjust
- Location: Te Flaps
- Stage of operation: AP
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900888

## Discrepancy

T/E FLAP DISAGREE- FLAPS STOPPED AT 18 DEGREES.  ALTERNATE LEADING EDGE AND TRAILING EDGE PROCEDURE FOLLOWED.   T/E FLAP DISAGREE EXTINGUISED.  A 20 FLAP NORMAL LANDING.  *S/D*  AN OUT-OF-ADJUSTMENT FLAP LEVER POSITION TRANSMITTER (RVDT NR 2, M603) INHIBITED FULL TRAVEL OF THE TRAILING EDGE FLAPS.  ENGAGING THE ALTERNATE FLAP DRIVE ELECTRIC MOTOR BYPASSED THE AUTHORITY OF THE FLAP LEVER ALLOWING THE FLAPS TO EXTEND TO THE 20 UNIT POSITION FOR NORMAL LANDING.  THE SUBJECT TRANSMITTER WAS READJUSTED PER MM 27-51-26.  THE FLAP SYSTEM WAS OPERATIONALLY TESTED SEVERAL TIMES AFTER ADJUSTMENTS AND ALL OPS CHECKS WERE NORMAL.

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