 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A CE402 has an altitude deviation shortly after takeoff because the flight crew fails to notice that the autoplt has tripped off.
| Attributes | |
| ACN | 383030 |
| Time | |
| Date | 199710 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : den |
| State Reference | CO |
| Altitude | msl bound lower : 9000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : den tower : las |
| Operator | common carrier : air taxi |
| Make Model Name | Cessna 402/402C/B379 Businessliner/Utiliner |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 200 flight time total : 2000 flight time type : 180 |
| ASRS Report | 383030 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Autoplt was turned on at 9000 ft MSL for altitude hold and heading. 9000 ft was my assigned altitude. I was busy with other cockpit duties and did not notice the altitude portion of autoplt had disengaged. Altitude then deviated +1000 ft to 10000 ft MSL. Denver departure then queried my current altitude and I responded that I was 'correcting.' the autoplt in these aircraft must continuously be monitored just like the autoplt in any other aircraft.
Original NASA ASRS Text
Title: A CE402 HAS AN ALTDEV SHORTLY AFTER TKOF BECAUSE THE FLC FAILS TO NOTICE THAT THE AUTOPLT HAS TRIPPED OFF.
Narrative: AUTOPLT WAS TURNED ON AT 9000 FT MSL FOR ALT HOLD AND HEADING. 9000 FT WAS MY ASSIGNED ALT. I WAS BUSY WITH OTHER COCKPIT DUTIES AND DID NOT NOTICE THE ALT PORTION OF AUTOPLT HAD DISENGAGED. ALT THEN DEVIATED +1000 FT TO 10000 FT MSL. DENVER DEP THEN QUERIED MY CURRENT ALT AND I RESPONDED THAT I WAS 'CORRECTING.' THE AUTOPLT IN THESE ACFT MUST CONTINUOUSLY BE MONITORED JUST LIKE THE AUTOPLT IN ANY OTHER ACFT.
Data retrieved from NASA's ASRS site as of July 2007 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.