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Flight crew report of flying their aircraft under IFR flight rules, IMC, when the aircraft was restr to VFR flight rules and VMC conditions only.
| Attributes | |
| ACN | 274500 |
| Time | |
| Date | 199406 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz tower : msy |
| Operator | common carrier : air carrier |
| Make Model Name | SF 340A |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff cruise other landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 120 flight time total : 4140 flight time type : 120 |
| ASRS Report | 274500 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 9000 flight time type : 3300 |
| ASRS Report | 274499 |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I unknowingly operated an aircraft in IMC conditions while on an IFR flight plan, that due to a recent maintenance installment, the aircraft was not suitable for IFR/IMC conditions. See attached paperwork. This occurred between april and june 1994. Supplemental information from acn 274499: company installed electric led readout vsi on captain and first officer's side, in anticipation of TCASII being installed. These instruments would continually fail in-flight causing a blank screen. An FAA inspector was riding along (another flight) and noticed the failures, and grounded fleet to day VFR flight plans only. Corrective action by company: file VFR flight plans until old vsi can be re-installed or problem corrected.
Original NASA ASRS Text
Title: FLC RPT OF FLYING THEIR ACFT UNDER IFR FLT RULES, IMC, WHEN THE ACFT WAS RESTR TO VFR FLT RULES AND VMC CONDITIONS ONLY.
Narrative: I UNKNOWINGLY OPERATED AN ACFT IN IMC CONDITIONS WHILE ON AN IFR FLT PLAN, THAT DUE TO A RECENT MAINT INSTALLMENT, THE ACFT WAS NOT SUITABLE FOR IFR/IMC CONDITIONS. SEE ATTACHED PAPERWORK. THIS OCCURRED BTWN APRIL AND JUNE 1994. SUPPLEMENTAL INFO FROM ACN 274499: COMPANY INSTALLED ELECTRIC LED READOUT VSI ON CAPT AND FO'S SIDE, IN ANTICIPATION OF TCASII BEING INSTALLED. THESE INSTS WOULD CONTINUALLY FAIL INFLT CAUSING A BLANK SCREEN. AN FAA INSPECTOR WAS RIDING ALONG (ANOTHER FLT) AND NOTICED THE FAILURES, AND GNDED FLEET TO DAY VFR FLT PLANS ONLY. CORRECTIVE ACTION BY COMPANY: FILE VFR FLT PLANS UNTIL OLD VSI CAN BE RE-INSTALLED OR PROB CORRECTED.
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.