<< >> NASA ASRS Report 391173, January 1998

A military C12 turned off his landing runway onto another active runway as a UH60 was landing on that runway. UH60 was able to stop 2000 ft away from the C12 who did not have clearance to taxi on the runway.

Attributes
ACN	391173
Time
Date	199801
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dhn
State Reference	AL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	other
Make Model Name	Super King Air 200/Huron
Operating Under FAR Part	other : other
Flight Phase	ground other : taxi landing other
Flight Plan	VFR
Aircraft 2
Operator	other
Make Model Name	S-76/S-76 Mark II
Operating Under FAR Part	other : other
Flight Phase	descent : approach landing other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller non radar : 8
ASRS Report	391173
Person 2
Affiliation	government : military
Function	flight crew : captain oversight : pic
Qualification	pilot : military
Events
Anomaly	conflict : ground critical incursion : runway non adherence : far non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 2000 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Crossing runway operation runways 14 and 18. I had multiple aircraft in the touch and go pattern on runway 18. Runway 14 had a UH60 blackhawk helicopter in touch and go pattern, to hold short runway 18 on each pattern. On one landing, a C12 landed on runway 18 for taxi back for departure. Instead of crossing runway 14, the C12 made a right turn on runway 14, as the UH60 was touching down on runway 14. The aircraft were head to head with 2000 ft separation between them. Luckily, the aircraft landing on runway 14 was a helicopter and had almost come to a halt on the runway. On the previous pattern, the C12 had been instructed to turn on runway 32 followed by a right turn on the parallel taxiway for runway 18. He must have assumed that it was approved for subsequent lndgs, but I would think a pilot of a large twin would know to never turn on a runway unless instructed to do so.

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Original NASA ASRS Text

Title: A MIL C12 TURNED OFF HIS LNDG RWY ONTO ANOTHER ACTIVE RWY AS A UH60 WAS LNDG ON THAT RWY. UH60 WAS ABLE TO STOP 2000 FT AWAY FROM THE C12 WHO DID NOT HAVE CLRNC TO TAXI ON THE RWY.

Narrative: XING RWY OP RWYS 14 AND 18. I HAD MULTIPLE ACFT IN THE TOUCH AND GO PATTERN ON RWY 18. RWY 14 HAD A UH60 BLACKHAWK HELI IN TOUCH AND GO PATTERN, TO HOLD SHORT RWY 18 ON EACH PATTERN. ON ONE LNDG, A C12 LANDED ON RWY 18 FOR TAXI BACK FOR DEP. INSTEAD OF XING RWY 14, THE C12 MADE A R TURN ON RWY 14, AS THE UH60 WAS TOUCHING DOWN ON RWY 14. THE ACFT WERE HEAD TO HEAD WITH 2000 FT SEPARATION BTWN THEM. LUCKILY, THE ACFT LNDG ON RWY 14 WAS A HELI AND HAD ALMOST COME TO A HALT ON THE RWY. ON THE PREVIOUS PATTERN, THE C12 HAD BEEN INSTRUCTED TO TURN ON RWY 32 FOLLOWED BY A R TURN ON THE PARALLEL TXWY FOR RWY 18. HE MUST HAVE ASSUMED THAT IT WAS APPROVED FOR SUBSEQUENT LNDGS, BUT I WOULD THINK A PLT OF A LARGE TWIN WOULD KNOW TO NEVER TURN ON A RWY UNLESS INSTRUCTED TO DO SO.

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.