# SDR CA130710002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft time: 34,095 hours
- Engine: Ge CFM567B24
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Heater
- Condition: Failed
- Location: Pitot Tube
- Part time: 35,750 hours
- Component: Pitot Tube, Rosemount
- Component part number: 0851HT1
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA130710002

## Discrepancy

(CAN) ON CLIMB THROUGH FL360 OVER SPEED WARNING SOUNDED AND IAS DISAGREE ILLUMINATED ON BOTH PFD`S, AFTER 10-15 SECONDS ALL INDICATIONS RETURNED TO NORMAL. REACHING FL390, IAS DISAGREES ILLUMINATED AGAIN. CREW HAD THE CLACKER AND THEY HAVE NOTED THE F/O`S PFD IAS IS 170 KTS AND CAPT`S AND STBY ARE INDICATING 240 KTS.  DECISION WAS MADE TO DIVERT.   MAINTENANCE FOUND THAT THE F/O PITOT PROBE WAS NOT HEATING CORRECTLY.  CAPT`S AND AUXILIARY AT 170 DEG AND THE F/O`S AT 92 DEG ON THE TIP.  THIS PROBLEM IS DOCUMENTED IN FTD ARTICLE 737NG-FTD-34-12001. PROBE WAS REPLACED IAW AMM 34-11-01.  PART REMOVED: PN 0851HT-1, SN 220544, TSI 35750, CSI 16702.

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