Flight crew of an mdt air carrier aircraft climbed above assigned altitude in response to a TCASII R...

Attributes
ACN	248929
Time
Date	199308
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ott airport : dca
State Reference	MD
Altitude	msl bound lower : 5000 msl bound upper : 5800
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca
Operator	common carrier : air carrier
Make Model Name	Medium Transport
Flight Phase	cruise other
Route In Use	enroute airway : v308
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 3500 flight time type : 1200
ASRS Report	248929
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 6500 flight time type : 5000
ASRS Report	248609
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 1200 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Inbound to dca for landing at 5000 ft, working with washington approach, we (the captain and myself) saw on our TCASII screen a red target within the 2 mi circle. It seemed to pop up out of nowhere with a minus 500 ft altitude readout (relative to us). Immediately the TCASII voice command of 'climb, climb' was heard and we complied. I quickly told washington about the deviation, they responded with a 'roger' and pointed out other traffic, a jet 2 O'clock and 2 mi. The RA target disappeared as we climbed to 5800 ft. We descended back to 5000 ft and asked the controller about the RA traffic. He said he did not show that traffic on his screen. After a normal STOL landing on runway 33, my captain called the controller on the telephone as per his request to exchange more information about the incident.

Original NASA ASRS Text

Title: FLC OF AN MDT ACR ACFT CLBED ABOVE ASSIGNED ALT IN RESPONSE TO A TCASII RA.

Narrative: INBOUND TO DCA FOR LNDG AT 5000 FT, WORKING WITH WASHINGTON APCH, WE (THE CAPT AND MYSELF) SAW ON OUR TCASII SCREEN A RED TARGET WITHIN THE 2 MI CIRCLE. IT SEEMED TO POP UP OUT OF NOWHERE WITH A MINUS 500 FT ALT READOUT (RELATIVE TO US). IMMEDIATELY THE TCASII VOICE COMMAND OF 'CLB, CLB' WAS HEARD AND WE COMPLIED. I QUICKLY TOLD WASHINGTON ABOUT THE DEV, THEY RESPONDED WITH A 'ROGER' AND POINTED OUT OTHER TFC, A JET 2 O'CLOCK AND 2 MI. THE RA TARGET DISAPPEARED AS WE CLBED TO 5800 FT. WE DSNDED BACK TO 5000 FT AND ASKED THE CTLR ABOUT THE RA TFC. HE SAID HE DID NOT SHOW THAT TFC ON HIS SCREEN. AFTER A NORMAL STOL LNDG ON RWY 33, MY CAPT CALLED THE CTLR ON THE TELEPHONE AS PER HIS REQUEST TO EXCHANGE MORE INFO ABOUT THE INCIDENT.

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.

Flight crew of an mdt air carrier aircraft climbed above assigned altitude in response to a TCASII RA.