Captain of an light transport undershot crossing altitude restr due to distraction of socializing wi...

Attributes
ACN	350160
Time
Date	199610
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : byp airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 13000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute airway : zfw
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 10700 flight time type : 6000
ASRS Report	350160
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Contacted by ZFW while we were in cruise at FL180 MSL and cleared to cross 30 mi northeast of byp VOR at 11000 ft MSL. I was PF, first officer received clearance, and I acknowledged it. An unrelated discussion then ensued, and I simply became distraction and forgot to start a descent. At 40 me northeast of byp, center called and asked if we would be able to make our crossing restr. I immediately realized we had made a mistake, and started a descent. We missed our restr by 2 mi. I don't think there was any traffic conflict.

Original NASA ASRS Text

Title: CAPT OF AN LTT UNDERSHOT XING ALT RESTR DUE TO DISTR OF SOCIALIZING WITH FO.

Narrative: CONTACTED BY ZFW WHILE WE WERE IN CRUISE AT FL180 MSL AND CLRED TO CROSS 30 MI NE OF BYP VOR AT 11000 FT MSL. I WAS PF, FO RECEIVED CLRNC, AND I ACKNOWLEDGED IT. AN UNRELATED DISCUSSION THEN ENSUED, AND I SIMPLY BECAME DISTR AND FORGOT TO START A DSCNT. AT 40 ME NE OF BYP, CTR CALLED AND ASKED IF WE WOULD BE ABLE TO MAKE OUR XING RESTR. I IMMEDIATELY REALIZED WE HAD MADE A MISTAKE, AND STARTED A DSCNT. WE MISSED OUR RESTR BY 2 MI. I DON'T THINK THERE WAS ANY TFC CONFLICT.

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.

Captain of an light transport undershot crossing altitude restr due to distraction of socializing with first officer.