Altitude deviation altitude overshot on descent account TCASII RA.

Attributes
ACN	260395
Time
Date	199401
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : psx
State Reference	TX
Altitude	msl bound lower : 23500 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 175 flight time total : 8000 flight time type : 3000
ASRS Report	260395
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 240 flight time total : 13000 flight time type : 6000
ASRS Report	260391
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot inflight encounter other 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 : 18000 vertical : 500
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

We asked for clearance out of FL260 because of turbulence and were cleared down to FL240. Approaching FL240 we had a TCASII RA. We continued our descent to approximately FL235 and acquired the aircraft visually. We then climbed back to our assigned flight level of FL240. ZHU asked our altitude and we told him FL235 and that we were maneuvering on a TCASII alert.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT ON DSCNT ACCOUNT TCASII RA.

Narrative: WE ASKED FOR CLRNC OUT OF FL260 BECAUSE OF TURB AND WERE CLRED DOWN TO FL240. APCHING FL240 WE HAD A TCASII RA. WE CONTINUED OUR DSCNT TO APPROX FL235 AND ACQUIRED THE ACFT VISUALLY. WE THEN CLBED BACK TO OUR ASSIGNED FLT LEVEL OF FL240. ZHU ASKED OUR ALT AND WE TOLD HIM FL235 AND THAT WE WERE MANEUVERING ON A TCASII ALERT.

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.