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Pilot deviation occurred when military F117 left assigned altitude of 16000 ft when exiting the holding pattern for entry into the restr area and conflicted with a BE02 sbound over onm VOR at 15000 ft.
| Attributes | |
| ACN | 363556 |
| Time | |
| Date | 199703 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : onm |
| State Reference | NM |
| Altitude | msl bound lower : 15000 msl bound upper : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | common carrier : air carrier |
| Make Model Name | Beech 1900 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | F-117 (Stealth) |
| Operating Under FAR Part | other : other |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : instrument pilot : private |
| Experience | controller radar : 15 flight time total : 2400 |
| ASRS Report | 363556 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft #1 was sbound over onm VOR at 15000 ft. Aircraft #2 was holding over onm VOR at 16000 ft as a time delay maneuver prior to entering R5107C. Aircraft #2 advises me that he is done with holding and will proceed into R5107C. I clear aircraft #2 to maintain 16000 ft (because of aircraft #1), advise radar service is terminated, and to contact 'cherokee' control (wsmr). I immediately observe aircraft #2 target passing slightly behind aircraft #1 with mode C showing 14XXX ft, descending. Aircraft #2 descended to about 12900 ft then began a climb. Altitude was erratic but aircraft #2 was clear of aircraft #1 at this point. Aircraft #2 was off frequency so no explanation could be sought.
Original NASA ASRS Text
Title: PLTDEV OCCURRED WHEN MIL F117 LEFT ASSIGNED ALT OF 16000 FT WHEN EXITING THE HOLDING PATTERN FOR ENTRY INTO THE RESTR AREA AND CONFLICTED WITH A BE02 SBOUND OVER ONM VOR AT 15000 FT.
Narrative: ACFT #1 WAS SBOUND OVER ONM VOR AT 15000 FT. ACFT #2 WAS HOLDING OVER ONM VOR AT 16000 FT AS A TIME DELAY MANEUVER PRIOR TO ENTERING R5107C. ACFT #2 ADVISES ME THAT HE IS DONE WITH HOLDING AND WILL PROCEED INTO R5107C. I CLR ACFT #2 TO MAINTAIN 16000 FT (BECAUSE OF ACFT #1), ADVISE RADAR SVC IS TERMINATED, AND TO CONTACT 'CHEROKEE' CTL (WSMR). I IMMEDIATELY OBSERVE ACFT #2 TARGET PASSING SLIGHTLY BEHIND ACFT #1 WITH MODE C SHOWING 14XXX FT, DSNDING. ACFT #2 DSNDED TO ABOUT 12900 FT THEN BEGAN A CLB. ALT WAS ERRATIC BUT ACFT #2 WAS CLR OF ACFT #1 AT THIS POINT. ACFT #2 WAS OFF FREQ SO NO EXPLANATION COULD BE SOUGHT.
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.