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A B757 tat probe failed during the arrival descent causing autopilot/autothrottle failures and erratic navigation indications; so the crew requested vectors for an all manual and raw data approach to a normal landing.
| Attributes | |
| ACN | 948502 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Data Computer |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
On ILS 25L; tat probe failure; autopilot failed; autothrottles failed. On a STAR arrival; erratic LNAV indications; received vectors back to intercept ILS. VFR conditions; eec's were deferred.
Original NASA ASRS Text
Title: A B757 TAT probe failed during the arrival descent causing autopilot/autothrottle failures and erratic NAV indications; so the crew requested vectors for an all manual and raw data approach to a normal landing.
Narrative: On ILS 25L; TAT Probe Failure; autopilot failed; autothrottles failed. On a STAR arrival; erratic LNAV indications; received vectors back to intercept ILS. VFR conditions; EEC's were deferred.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.