# SDR HNAA2019011500019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2019
- Submitted: January 15, 2019
- Operation: Air carrier
- Aircraft: [N649PP](https://openairdocs.org/aircraft/N649PP), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145234
- Aircraft time: 44,074 hours, 39,859 cycles
- System (JASC): [3297 · Landing Gear System Wiring](https://openairdocs.org/jasc/3297)
- Part: Wire Harness
- Condition: Defective
- Location: Landing Gear
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2019011500019

## Discrepancy

PDIS  649  32-30  1914291  13JAN19  PHL  CLOSE AFTER TAKEOFF GEAR CONSTANT KNOCKING NOISE HEARD INFRONT AND BELOW FO. IN ADDITION NR 1 HYD PRESSURE FLUCTUATION FROM 2900 TO 3000 PSI. KNOCKING NOISE AT SAME PACE AS PRESSURE FLUCTUATION. FACT  14JAN19  17:28  PHL TROUBLESHOT WITH EMB 145 FIM 32-61-00-810-801-A UP TO STEP 5. FOUND PIN A AT PLUG P0048 DID NOT HAVE ADEQUATE VOLTAGE. R&R UP PROX SWITCH 2 HARNESS ON LT WING AS REQUIRED. ELECTRICAL TEST GOOD. OPS CHECKED IAW AMM 32-30-00 OPS CHECKS GOOD OK FOR SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.