A seaplane departed WA57 and an in trail seaplane passed within 50 ft vertical and 100 horizontal.

Attributes
ACN	439666
Time
Date	199906
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : wa57.airport
State Reference	WA
Altitude	msl single value : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	climbout : initial
Route In Use	departure : vfr
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	cruise : level
Route In Use	departure : vfr
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : multi engine pilot : cfi
Experience	flight time last 90 days : 175 flight time total : 1000 flight time type : 100
ASRS Report	439666
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial
Events
Anomaly	non adherence : far non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After I made an initial climb out traffic call, the other aircraft reported approximately 1 mi in trail at 1000 ft with my aircraft in sight. I made an additional traffic call 1 1/2 mi later, reporting '...800 ft, climbing wbound.' immediately after my call, the other aircraft overtook us high on my right. I proceeded to make a descending turn for spacing. I then made an additional location report and asked the other aircraft if they had us in sight when they overtook us. Their reply was affirmative. This conflict happened in a busy air corridor. For local noise abatement procedures, aircraft are funneled to and from the lake via narrow rtes.

Original NASA ASRS Text

Title: A SEAPLANE DEPARTED WA57 AND AN IN TRAIL SEAPLANE PASSED WITHIN 50 FT VERT AND 100 HORIZ.

Narrative: AFTER I MADE AN INITIAL CLBOUT TFC CALL, THE OTHER ACFT RPTED APPROX 1 MI IN TRAIL AT 1000 FT WITH MY ACFT IN SIGHT. I MADE AN ADDITIONAL TFC CALL 1 1/2 MI LATER, RPTING '...800 FT, CLBING WBOUND.' IMMEDIATELY AFTER MY CALL, THE OTHER ACFT OVERTOOK US HIGH ON MY R. I PROCEEDED TO MAKE A DSNDING TURN FOR SPACING. I THEN MADE AN ADDITIONAL LOCATION RPT AND ASKED THE OTHER ACFT IF THEY HAD US IN SIGHT WHEN THEY OVERTOOK US. THEIR REPLY WAS AFFIRMATIVE. THIS CONFLICT HAPPENED IN A BUSY AIR CORRIDOR. FOR LCL NOISE ABATEMENT PROCS, ACFT ARE FUNNELED TO AND FROM THE LAKE VIA NARROW RTES.

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.