# SDR DL757010036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2001
- Submitted: January 12, 2001
- Operation: Air carrier
- Aircraft: [N620DL](https://openairdocs.org/aircraft/N620DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 22910
- Aircraft time: 47,628 hours, 24,921 cycles
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Indicator
- Condition: Malfunctioned
- Location: Navigation
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL757010036

## Discrepancy

LOST NAV ALIGNMENT ON TAKEOFF ROLL.  IN ALIGN MODE AT RETURN TO GATE.  T/S PER FIM, NO PROBLEMS FOUND.  REPLACED INITIAL REF MODE PANEL AS PRECAUTION.  PERFORMED IRS OPERATIONAL TEST PER M/M, ALL TESTS NORMAL.

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