<< >> NASA ASRS Report 327213, February 1996

During cruise, an air carrier flight crew took evasive action when they received an RA to climb away from a T38 below. A flight attendant and passenger saw the T38 from the first class cabin window after the flight crew had stopped the evasive maneuver. Altitude deviation altitude excursion (T38).

Attributes
ACN	327213
Time
Date	199602
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : abi
State Reference	TX
Altitude	msl bound lower : 28000 msl bound upper : 28800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Talon
Operating Under FAR Part	other : other
Flight Phase	cruise other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 3000 flight time type : 50
ASRS Report	327213
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 200
ASRS Report	328367
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While at cruise at FL280, center gave us a TA of a T38 12 O'clock at FL270. The captain down-ranged the TCASII from 40 mi to 10 mi and noticed that the traffic was beginning a climb. He said 'this guy's climbing' or something to that effect. Just after, the TCASII gave us an RA to 'climb, climb!' I climbed to 28500 ft MSL until the TCASII reported 'clear of conflict.' the captain notified ATC of the situation and the center controller stated that he had seen no conflict on his scope. The captain replied that our TCASII had advised us to take evasive action and as per company policy, we absolutely followed suit. Supplemental information from acn 328367: I last noticed the TCASII traffic symbol at FL276 before looking outside trying to acquire the target. We climbed through FL288 before receiving a TCASII 'clear of conflict.' I was not sure how close the traffic had come as I never did see it, until flight attendant in first class section reported seeing a 'fighter' out the window while she was standing in the aisle or middle of the aircraft. She stated that the traffic was 'close' and only slightly low, and this was at the time that we had stopped our evasive maneuver -- FL287. A passenger in first class cabin also reported sighting the traffic.

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Original NASA ASRS Text

Title: DURING CRUISE, AN ACR FLC TOOK EVASIVE ACTION WHEN THEY RECEIVED AN RA TO CLB AWAY FROM A T38 BELOW. A FLT ATTENDANT AND PAX SAW THE T38 FROM THE FIRST CLASS CABIN WINDOW AFTER THE FLC HAD STOPPED THE EVASIVE MANEUVER. ALTDEV ALT EXCURSION (T38).

Narrative: WHILE AT CRUISE AT FL280, CTR GAVE US A TA OF A T38 12 O'CLOCK AT FL270. THE CAPT DOWN-RANGED THE TCASII FROM 40 MI TO 10 MI AND NOTICED THAT THE TFC WAS BEGINNING A CLB. HE SAID 'THIS GUY'S CLBING' OR SOMETHING TO THAT EFFECT. JUST AFTER, THE TCASII GAVE US AN RA TO 'CLB, CLB!' I CLBED TO 28500 FT MSL UNTIL THE TCASII RPTED 'CLR OF CONFLICT.' THE CAPT NOTIFIED ATC OF THE SIT AND THE CTR CTLR STATED THAT HE HAD SEEN NO CONFLICT ON HIS SCOPE. THE CAPT REPLIED THAT OUR TCASII HAD ADVISED US TO TAKE EVASIVE ACTION AND AS PER COMPANY POLICY, WE ABSOLUTELY FOLLOWED SUIT. SUPPLEMENTAL INFO FROM ACN 328367: I LAST NOTICED THE TCASII TFC SYMBOL AT FL276 BEFORE LOOKING OUTSIDE TRYING TO ACQUIRE THE TARGET. WE CLBED THROUGH FL288 BEFORE RECEIVING A TCASII 'CLR OF CONFLICT.' I WAS NOT SURE HOW CLOSE THE TFC HAD COME AS I NEVER DID SEE IT, UNTIL FLT ATTENDANT IN FIRST CLASS SECTION RPTED SEEING A 'FIGHTER' OUT THE WINDOW WHILE SHE WAS STANDING IN THE AISLE OR MIDDLE OF THE ACFT. SHE STATED THAT THE TFC WAS 'CLOSE' AND ONLY SLIGHTLY LOW, AND THIS WAS AT THE TIME THAT WE HAD STOPPED OUR EVASIVE MANEUVER -- FL287. A PAX IN FIRST CLASS CABIN ALSO RPTED SIGHTING THE TFC.

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.