 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
The first officer of a B737-800 reported that both eec's and both pfd's went into altitude mode and airspeed deviation in yellow.
| Attributes | |
| ACN | 1413273 |
| Time | |
| Date | 201612 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Engine Control |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 140 Flight Crew Type 6000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Eecs (electronic engine controllers) both went to alternate mode then we ran checklist. During completion; both pfds showed altitude and airspeed deviation in yellow. Not sure which was correct; we began running the airspeed unreliable checklist. At this time autothrottle and autopilot were off and captain was flying. We [advised ATC] with hopes of getting lower and cleared to 12;000 ft. Captain airspeed was low and first officer (first officer) side was almost to redline in descent. Neither of us properly used the standby airspeed for back up. At about 32;000 ft; both pfds began working again and the aircraft was still in and remained in positive control by the captain.
Original NASA ASRS Text
Title: The First Officer of a B737-800 reported that both EEC's and both PFD's went into ALT mode and airspeed deviation in yellow.
Narrative: EECs (Electronic Engine Controllers) both went to Alternate mode then we ran checklist. During completion; both PFDs showed ALT and airspeed deviation in yellow. Not sure which was correct; we began running the Airspeed Unreliable Checklist. At this time autothrottle and autopilot were off and Captain was flying. We [advised ATC] with hopes of getting lower and cleared to 12;000 ft. Captain airspeed was low and F/O (First Officer) side was almost to redline in descent. Neither of us properly used the Standby airspeed for back up. At about 32;000 ft; both PFDs began working again and the aircraft was still in and remained in positive control by the Captain.
Data retrieved from NASA's ASRS site 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.