# SDR HNAA2012042300747

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2012
- Submitted: April 23, 2012
- Operation: Air carrier
- Aircraft: N329EN
- Make and model: Dhav DHC8103
- Aircraft serial: 290
- Aircraft time: 42,176 hours, 48,397 cycles
- System (JASC): [7714 · Engine RPM Indicating System](https://openairdocs.org/jasc/7714)
- Part: Indication Sys
- Condition: Malfunctioned
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2012042300747

## Discrepancy

NR 1 NL INDICATOR EXCEEDED LIMITATIONS ON TAKEOFF ROLL.  ABORTED TAKEOFF, ACFT RETURNED TO GATE WITH OUT CALLING MX FIRST.  INDICATOR WAS R & R PRIOR TO DEPARTURE.  SLAVED IN NEW NL GAUGE, NO FIX. R & R NL PROBE IAW MM 72-01-60.

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