Altitude crossing restr not met.

Attributes
ACN	303742
Time
Date	199505
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ric
State Reference	VA
Altitude	msl bound lower : 27000 msl bound upper : 29000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	303742
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	303741
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

In sum: given a crossing altitude restr by ZDC of 60 mi south of ric at FL270. In the descent, center asked what we understood the restr to be. Replied with 60 mi south of ric at FL270. He said it was 65 mi south of FL270 and also said -- make it 60 mi south at FL270. We leveled at FL270 about 62 DME south of ric. The restr was given once, then revised, with a resulting misunderstanding. Supplemental information from acn 303741: ATC indicated we read back restr as 65 mi southeast. Not sure where misunderstanding/confusion occurred.

Original NASA ASRS Text

Title: ALT XING RESTR NOT MET.

Narrative: IN SUM: GIVEN A XING ALT RESTR BY ZDC OF 60 MI S OF RIC AT FL270. IN THE DSCNT, CTR ASKED WHAT WE UNDERSTOOD THE RESTR TO BE. REPLIED WITH 60 MI S OF RIC AT FL270. HE SAID IT WAS 65 MI S OF FL270 AND ALSO SAID -- MAKE IT 60 MI S AT FL270. WE LEVELED AT FL270 ABOUT 62 DME S OF RIC. THE RESTR WAS GIVEN ONCE, THEN REVISED, WITH A RESULTING MISUNDERSTANDING. SUPPLEMENTAL INFO FROM ACN 303741: ATC INDICATED WE READ BACK RESTR AS 65 MI SE. NOT SURE WHERE MISUNDERSTANDING/CONFUSION OCCURRED.

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.