TCASII RA to climb probably false.

Attributes
ACN	257162
Time
Date	199311
Day	Sun
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : nqm
State Reference	HI
Altitude	msl bound lower : 37000 msl bound upper : 37900
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : other oceanic enroute : pacific
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 1800
ASRS Report	257162
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 8000 flight time type : 120
ASRS Report	257343
Events
Anomaly	altitude deviation : excursion from assigned altitude other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Cruising in smooth air at FL370, got a TA with '00' amber in center of ivsi. Almost instantly we got an RA to climb, climb. We began a climb then after about 5 seconds, we got 'increase climb, increase climb' so we pulled harder. After about 5 more seconds, it stopped. We don't remember hearing 'clear of conflict.' we climbed about 800-900 ft during maneuver. We returned to FL370. We never saw or heard or felt anything. 3 passenger and 5 flight attendants sustained minor injuries (scrapes, bruises, bumps, etc). All were in back of aircraft. Seat belt sign was on. 1 passenger in biffy. The TCASII gave a relatively normal sequence of steps for what an actual event might look like, except: the first indication was the TA dead center on screen as opposed to approaching from the edge, the TA switched to RA very fast -- no time to even look.

Original NASA ASRS Text

Title: TCASII RA TO CLB PROBABLY FALSE.

Narrative: CRUISING IN SMOOTH AIR AT FL370, GOT A TA WITH '00' AMBER IN CTR OF IVSI. ALMOST INSTANTLY WE GOT AN RA TO CLB, CLB. WE BEGAN A CLB THEN AFTER ABOUT 5 SECONDS, WE GOT 'INCREASE CLB, INCREASE CLB' SO WE PULLED HARDER. AFTER ABOUT 5 MORE SECONDS, IT STOPPED. WE DON'T REMEMBER HEARING 'CLR OF CONFLICT.' WE CLBED ABOUT 800-900 FT DURING MANEUVER. WE RETURNED TO FL370. WE NEVER SAW OR HEARD OR FELT ANYTHING. 3 PAX AND 5 FLT ATTENDANTS SUSTAINED MINOR INJURIES (SCRAPES, BRUISES, BUMPS, ETC). ALL WERE IN BACK OF ACFT. SEAT BELT SIGN WAS ON. 1 PAX IN BIFFY. THE TCASII GAVE A RELATIVELY NORMAL SEQUENCE OF STEPS FOR WHAT AN ACTUAL EVENT MIGHT LOOK LIKE, EXCEPT: THE FIRST INDICATION WAS THE TA DEAD CTR ON SCREEN AS OPPOSED TO APCHING FROM THE EDGE, THE TA SWITCHED TO RA VERY FAST -- NO TIME TO EVEN LOOK.

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.