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Reported loss of altitude separation when an nga BE35 inadvertently climbed above assigned altitude of 5000 ft and conflicted with a uga BE33 at 6000 ft.
| Attributes | |
| ACN | 362517 |
| Time | |
| Date | 199703 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : rhi |
| State Reference | WI |
| Altitude | msl bound lower : 5400 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp tower : dtw |
| Operator | general aviation : personal |
| Make Model Name | Bonanza 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude cruise other cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Bonanza 36 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : private |
| Experience | controller radar : 6 flight time total : 50 |
| ASRS Report | 362517 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| Experience | flight time last 90 days : 18 flight time total : 710 flight time type : 170 |
| ASRS Report | 363109 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe inflight encounter : weather inflight encounter other non adherence : clearance non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Miss Distance | horizontal : 24000 vertical : 600 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft #1 at 5000 ft reported ice and requested climb. Aircraft #2 at 6000 ft was 4 mi northwest of aircraft #1. Aircraft #1 was turned 20 degrees right for climb. Climb was not issued. Aircraft #2 was turned 20 degrees left for traffic. Aircraft #1 was observed climbing from 5000 ft to 5400 ft. Aircraft #1 was instructed to maintain 5000 ft and higher would be available in 2 mins. Supplemental information from acn 363109: I was told to turn 20 degrees right to clear traffic. I disengaged autoplt and turned 20 degrees right and inadvertently allowed my altitude to increase to 5200-5300 ft.
Original NASA ASRS Text
Title: RPTED LOSS OF ALT SEPARATION WHEN AN NGA BE35 INADVERTENTLY CLBED ABOVE ASSIGNED ALT OF 5000 FT AND CONFLICTED WITH A UGA BE33 AT 6000 FT.
Narrative: ACFT #1 AT 5000 FT RPTED ICE AND REQUESTED CLB. ACFT #2 AT 6000 FT WAS 4 MI NW OF ACFT #1. ACFT #1 WAS TURNED 20 DEGS R FOR CLB. CLB WAS NOT ISSUED. ACFT #2 WAS TURNED 20 DEGS L FOR TFC. ACFT #1 WAS OBSERVED CLBING FROM 5000 FT TO 5400 FT. ACFT #1 WAS INSTRUCTED TO MAINTAIN 5000 FT AND HIGHER WOULD BE AVAILABLE IN 2 MINS. SUPPLEMENTAL INFO FROM ACN 363109: I WAS TOLD TO TURN 20 DEGS R TO CLR TFC. I DISENGAGED AUTOPLT AND TURNED 20 DEGS R AND INADVERTENTLY ALLOWED MY ALT TO INCREASE TO 5200-5300 FT.
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.