S80 altitude bust sea.

Attributes
ACN	457080
Time
Date	199912
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sea.airport
State Reference	WA
Altitude	msl bound lower : 9000 msl bound upper : 9500
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : s46.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude climbout : vacating altitude
Route In Use	departure sid : mountain 4
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	457080
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	457081
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance non adherence : far
Independent Detector	aircraft equipment : altitude alert aircraft equipment other aircraft equipment : altimeter
Resolutory Action	flight crew : returned to assigned altitude flight crew : became reoriented
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Sea 070 degree radial, 10 DME. Departed sea on mountain 4 departure. After clearance to 9000 ft, passing 7000 ft we noticed traffic ahead near our altitude that we couldn't find on TCASII. While looking at TCASII for that traffic, we flew through 9000 ft to 9500 ft. Descended immediately, discussed the situation with sea approach. No conflicts were indicated. This incident, while entirely our fault for not watching the leveloff, points out again the need for an aural tone to warn us of approaching leveloffs. Callback conversation with reporter revealed the following information: the reporter states that the S80 aircraft as ordered from the manufacturer contains a visual but does not contain an aural warning when approaching a leveloff altitude.

Original NASA ASRS Text

Title: S80 ALT BUST SEA.

Narrative: SEA 070 DEG RADIAL, 10 DME. DEPARTED SEA ON MOUNTAIN 4 DEP. AFTER CLRNC TO 9000 FT, PASSING 7000 FT WE NOTICED TFC AHEAD NEAR OUR ALT THAT WE COULDN'T FIND ON TCASII. WHILE LOOKING AT TCASII FOR THAT TFC, WE FLEW THROUGH 9000 FT TO 9500 FT. DSNDED IMMEDIATELY, DISCUSSED THE SIT WITH SEA APCH. NO CONFLICTS WERE INDICATED. THIS INCIDENT, WHILE ENTIRELY OUR FAULT FOR NOT WATCHING THE LEVELOFF, POINTS OUT AGAIN THE NEED FOR AN AURAL TONE TO WARN US OF APCHING LEVELOFFS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATES THAT THE S80 ACFT AS ORDERED FROM THE MANUFACTURER CONTAINS A VISUAL BUT DOES NOT CONTAIN AN AURAL WARNING WHEN APCHING A LEVELOFF ALT.

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.