# SDR CALA2023021600443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2023
- Submitted: February 17, 2023
- Operation: Air carrier
- Aircraft: [N68061](https://openairdocs.org/aircraft/N68061), registered now
- Make and model: Boeing 767
- Registry model: [Boeing 767](https://openairdocs.org/model/boeing-767) (OpenAirDocs)
- Aircraft serial: 29456
- Aircraft time: 82,115 hours, 11,630 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Rvdt
- Part number: M544
- Condition: None
- Location: L/E O/B Pdu
- Stage of operation: DE
- How discovered: O
- Nature of condition: F, J, O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023021600443

## Discrepancy

ON APPROACH GOT  TE FLAP DISAGREE WHEN ATTEPTING TO MOVE FLAPS F ROM 1 TO 5 PERFORMED BITE OF FSEU GOT MESSAGE NUMBER27-81041 L/E OUTBD PDU RVDT REQUIRES MORE T/S PARTS USED:  64-2781-3-0320,QTY :1 76-2781-3-0173,QTY :1 T/S IRW FIM 27-51 TASK 809. FOUND FAULT 27-81041. FOUND RVDT 27-81-11-424-029. OP''S CHECKED GOOD. READING NOW -8.62 RETRACTED M544 READING -3.77 IN RETRACTED POSITION WHEN THE NOMINAL SHOULD (-8.69 NOMINAL) 5.63 TKF (5.58 NOMINAL) & 10.34 LDG (10.27 BE -8.69. ATTEMTED TO ADJUST BUT THE READING FROM RVDT BECAME NOMINAL) ERRATIC AND UNRELIABLE. R&R RVDT M544 ON L/E O/B PDU IAW MM

---
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.