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An medium large transport commercial fixed wing aircraft on takeoff roll noted the failure of the airspeed, altimeter and vertical speed indicators caused by the static and pitot pressure lines not connected to the #2 air data computer.
| Attributes | |
| ACN | 408284 |
| Time | |
| Date | 199807 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : tpa |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : tpa |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 10000 flight time type : 2500 |
| ASRS Report | 408284 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On takeoff roll I noted a failure of my airspeed indicator. During climb we also noted a failure of the altimeter and vertical speed indicator on the first officer's side only. No red failure flags were in view. After landing in pittsburgh, PA, our maintenance discovered both static and ram air pressure lines were disconnected from the #2 air data computer.
Original NASA ASRS Text
Title: AN MLG COMMERCIAL FIXED WING ACFT ON TKOF ROLL NOTED THE FAILURE OF THE AIRSPD, ALTIMETER AND VERT SPD INDICATORS CAUSED BY THE STATIC AND PITOT PRESSURE LINES NOT CONNECTED TO THE #2 AIR DATA COMPUTER.
Narrative: ON TKOF ROLL I NOTED A FAILURE OF MY AIRSPD INDICATOR. DURING CLB WE ALSO NOTED A FAILURE OF THE ALTIMETER AND VERT SPD INDICATOR ON THE FO'S SIDE ONLY. NO RED FAILURE FLAGS WERE IN VIEW. AFTER LNDG IN PITTSBURGH, PA, OUR MAINT DISCOVERED BOTH STATIC AND RAM AIR PRESSURE LINES WERE DISCONNECTED FROM THE #2 AIR DATA COMPUTER.
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.