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Private pilot instrument rating trainee allowed the small aircraft sel to ascend from assigned cruise altitude due to mountain wave updrafts.
| Attributes | |
| ACN | 324260 |
| Time | |
| Date | 199512 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zab |
| State Reference | NM |
| Altitude | msl bound lower : 12000 msl bound upper : 12300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : ord |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute airway : v190 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor |
| Qualification | other other : other pilot : cfi pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 90 flight time total : 13000 flight time type : 500 |
| ASRS Report | 324260 |
| Person 2 | |
| Affiliation | Other |
| Function | instruction : trainee |
| Qualification | pilot : private |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter other non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
This was an IFR training flight to satisfy the long cross country requirement for an instrument rating. Student is a private pilot. We were on an airway as cleared and encountered a mountain wave caused by a 35-40 KT northwest wind at 12000 ft MSL. The student was a little slow in correcting for a severe updraft and I believe that we were very close or exceeded the 300 ft buffer. No communication was made with center. As the instructor, I should have been watching a little closer as to the student's reaction to the effects of the wave.
Original NASA ASRS Text
Title: PVT PLT INST RATING TRAINEE ALLOWED THE SMA SEL TO ASCEND FROM ASSIGNED CRUISE ALT DUE TO MOUNTAIN WAVE UPDRAFTS.
Narrative: THIS WAS AN IFR TRAINING FLT TO SATISFY THE LONG XCOUNTRY REQUIREMENT FOR AN INST RATING. STUDENT IS A PVT PLT. WE WERE ON AN AIRWAY AS CLRED AND ENCOUNTERED A MOUNTAIN WAVE CAUSED BY A 35-40 KT NW WIND AT 12000 FT MSL. THE STUDENT WAS A LITTLE SLOW IN CORRECTING FOR A SEVERE UPDRAFT AND I BELIEVE THAT WE WERE VERY CLOSE OR EXCEEDED THE 300 FT BUFFER. NO COM WAS MADE WITH CTR. AS THE INSTRUCTOR, I SHOULD HAVE BEEN WATCHING A LITTLE CLOSER AS TO THE STUDENT'S REACTION TO THE EFFECTS OF THE WAVE.
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.