Air carrier medium large transport altitude deviation excursion from clearance altitude in response ...

Attributes
ACN	198838
Time
Date	199201
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ric
State Reference	VA
Altitude	msl bound lower : 2500 msl bound upper : 3000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tracon : ric artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 24000 flight time type : 2000
ASRS Report	198838
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 400
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

I was being radar vectored at 3000 MSL for an ILS to runway 16 at richmond, va, airport by approach. Approach advised us that traffic to our right had us in sight, and was going to follow us visually to runway 16. Shortly after we got a TCASII TA, followed by an RA to descend at a min of 1000 FPM. The traffic was indicating 400 ft above us and closing horizontally. Following the RA instruction we descended to 2500 ft MSL which terminated the RA. I advised richmond approach what was happening, and was assigned to maintain 2500 ft MSL for the ILS approach to runway 16. Note: the TCASII tested ok on the ground.

Original NASA ASRS Text

Title: ACR MLG ALTDEV EXCURSION FROM CLRNC ALT IN RESPONSE TO TCASII RA.

Narrative: I WAS BEING RADAR VECTORED AT 3000 MSL FOR AN ILS TO RWY 16 AT RICHMOND, VA, ARPT BY APCH. APCH ADVISED US THAT TFC TO OUR R HAD US IN SIGHT, AND WAS GOING TO FOLLOW US VISUALLY TO RWY 16. SHORTLY AFTER WE GOT A TCASII TA, FOLLOWED BY AN RA TO DSND AT A MIN OF 1000 FPM. THE TFC WAS INDICATING 400 FT ABOVE US AND CLOSING HORIZLY. FOLLOWING THE RA INSTRUCTION WE DSNDED TO 2500 FT MSL WHICH TERMINATED THE RA. I ADVISED RICHMOND APCH WHAT WAS HAPPENING, AND WAS ASSIGNED TO MAINTAIN 2500 FT MSL FOR THE ILS APCH TO RWY 16. NOTE: THE TCASII TESTED OK ON THE GND.

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.

Air carrier medium large transport altitude deviation excursion from clearance altitude in response to TCASII RA.