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A new CFI experiences selective hearing and descends 1500 ft below his assigned altitude, while IMC, because he is used to flying the approach as published.
| Attributes | |
| ACN | 439830 |
| Time | |
| Date | 199906 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : lci.ils |
| State Reference | NH |
| Altitude | msl bound lower : 2500 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | Mixed |
| Aircraft 1 | |
| Controlling Facilities | tracon : mht.tracon |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer only : lci/08 |
| Flight Phase | descent : holding |
| Route In Use | approach : instrument non precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | instruction : instructor oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 70 flight time total : 650 flight time type : 350 |
| ASRS Report | 439830 |
| Person 2 | |
| Affiliation | other |
| Function | instruction : trainee |
| Qualification | pilot : private |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : far non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The altitude deviation occurred during an instrument training flight in IMC. I requested the localizer runway 8 approach at lci with holds at the blo NDB (OM). Manchester approach assigned us to 4000 ft MSL and I proceeded to descend to 2500 ft per the approach plate. I had my mind set on the approach and was so accustomed to practicing it in VMC conditions that I forgot my instructions to maintain 4000 ft. Upon arrival at 2500 ft, ATC queried my altitude deviation and instructed us to climb to 3500 ft and hold as published. I apologized and we held appropriately. I wasn't paying close enough attention to ATC and was giving instruction. I was also so accustomed to performing that approach in VMC, without ATC assistance. Approach was very busy and we were probably all a little fatigued. It could have been disastrous if ATC had other aircraft below us. I will certainly pay more attention to ATC and listen for the words 'cleared for the approach.'
Original NASA ASRS Text
Title: A NEW CFI EXPERIENCES SELECTIVE HEARING AND DSNDS 1500 FT BELOW HIS ASSIGNED ALT, WHILE IMC, BECAUSE HE IS USED TO FLYING THE APCH AS PUBLISHED.
Narrative: THE ALTDEV OCCURRED DURING AN INST TRAINING FLT IN IMC. I REQUESTED THE LOC RWY 8 APCH AT LCI WITH HOLDS AT THE BLO NDB (OM). MANCHESTER APCH ASSIGNED US TO 4000 FT MSL AND I PROCEEDED TO DSND TO 2500 FT PER THE APCH PLATE. I HAD MY MIND SET ON THE APCH AND WAS SO ACCUSTOMED TO PRACTICING IT IN VMC CONDITIONS THAT I FORGOT MY INSTRUCTIONS TO MAINTAIN 4000 FT. UPON ARR AT 2500 FT, ATC QUERIED MY ALTDEV AND INSTRUCTED US TO CLB TO 3500 FT AND HOLD AS PUBLISHED. I APOLOGIZED AND WE HELD APPROPRIATELY. I WASN'T PAYING CLOSE ENOUGH ATTN TO ATC AND WAS GIVING INSTRUCTION. I WAS ALSO SO ACCUSTOMED TO PERFORMING THAT APCH IN VMC, WITHOUT ATC ASSISTANCE. APCH WAS VERY BUSY AND WE WERE PROBABLY ALL A LITTLE FATIGUED. IT COULD HAVE BEEN DISASTROUS IF ATC HAD OTHER ACFT BELOW US. I WILL CERTAINLY PAY MORE ATTN TO ATC AND LISTEN FOR THE WORDS 'CLRED FOR THE APCH.'
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.