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Flight crew of a military contracted learjet, LR36, exited their assigned warning area causing a potential conflict with another aircraft.
| Attributes | |
| ACN | 482191 |
| Time | |
| Date | 200008 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : swl.vortac |
| State Reference | VA |
| Altitude | msl single value : 30000 |
| Environment | |
| Flight Conditions | Mixed |
| Weather Elements | Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Operator | other |
| Make Model Name | Learjet 36 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other vortac |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 186 flight time total : 4444 flight time type : 560 |
| ASRS Report | 482191 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 4900 flight time type : 600 |
| ASRS Report | 481866 |
| Events | |
| Anomaly | airspace violation : exit inflight encounter : weather non adherence : clearance non adherence : far |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to assigned airspace |
| Consequence | Other |
| Miss Distance | horizontal : 36000 vertical : 1000 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Spillout from W-386. Own aircraft at 30000 ft executing a 90-270 degree turn passing point 'P3' (3810N 07456W) to reset on a 120-300 degree course line. Combination of ssw winds and TAS pushed turn radius outside boundary of W386 at 3-4 NM. 2/3 through 270 degree portion of turn, I sighted a civil airliner 5-6 mi west of my position +/-1000 ft of altitude. Own aircraft was under nominal radar control by USN/wallops island controllers. Contributing factors: non standard controller terminology ('are you turning left?'), non directive controller communications (not heard 'tighten left turn for area control'), and pilot distraction from w-area boundary, assumed 'P3' was calculated to allow for aircraft turn radius.
Original NASA ASRS Text
Title: FLC OF A MIL CONTRACTED LEARJET, LR36, EXITED THEIR ASSIGNED WARNING AREA CAUSING A POTENTIAL CONFLICT WITH ANOTHER ACFT.
Narrative: SPILLOUT FROM W-386. OWN ACFT AT 30000 FT EXECUTING A 90-270 DEG TURN PASSING POINT 'P3' (3810N 07456W) TO RESET ON A 120-300 DEG COURSE LINE. COMBINATION OF SSW WINDS AND TAS PUSHED TURN RADIUS OUTSIDE BOUNDARY OF W386 AT 3-4 NM. 2/3 THROUGH 270 DEG PORTION OF TURN, I SIGHTED A CIVIL AIRLINER 5-6 MI W OF MY POS +/-1000 FT OF ALT. OWN ACFT WAS UNDER NOMINAL RADAR CTL BY USN/WALLOPS ISLAND CTLRS. CONTRIBUTING FACTORS: NON STANDARD CTLR TERMINOLOGY ('ARE YOU TURNING L?'), NON DIRECTIVE CTLR COMS (NOT HEARD 'TIGHTEN L TURN FOR AREA CTL'), AND PLT DISTR FROM W-AREA BOUNDARY, ASSUMED 'P3' WAS CALCULATED TO ALLOW FOR ACFT TURN RADIUS.
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.