IFR PA28 departure from hou received GPWS warning; initially assigned 3000 ft on IDU3 SID and then i...

Attributes
ACN	829247
Time
Date	200903
Local Time Of Day	0001-0600
Place
Locale Reference	HOU.Airport
State Reference	TX
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Vectors SID IDU3
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 11 Flight Crew Total 449 Flight Crew Type 199
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy
Miss Distance	Vertical 900

Narrative:

While departing hou on the industry 3 departure (SID); I was given a heading of 220 degrees and altitude of 3000 ft. This is less than 1000 ft obstacle clearance over the large tower farm southwest houston. While in IMC conditions near these towers my garmin 430 panel mount GPS activated its terrain warning indication; so I climbed to 3200 ft until the warning went off. I also immediately requested 'direct sealy' which would give me a right turn away from the tower farm. ATC told me to 'stay on heading' and I got a second terrain warning. The assigned altitude of 3000 ft is less than 1000 ft clearance; and my brand of GPS is very popular in the general aviation fleet. I would recommend houston departure change their procedures to keep aircraft 1000 ft above or; given headings away from -- the huge antennae farm.

Original NASA ASRS Text

Title: IFR PA28 departure from HOU received GPWS warning; initially assigned 3000 FT on IDU3 SID and then issued 220 vector; reporter alleging ATC's heading and altitude caused GPWS activation.

Narrative: While departing HOU on the Industry 3 departure (SID); I was given a heading of 220 degrees and altitude of 3000 FT. This is less than 1000 FT obstacle clearance over the large tower farm southwest Houston. While in IMC conditions near these towers my Garmin 430 panel mount GPS activated its terrain warning indication; so I climbed to 3200 FT until the warning went off. I also immediately requested 'direct SEALY' which would give me a right turn away from the tower farm. ATC told me to 'stay on heading' and I got a second terrain warning. The assigned altitude of 3000 FT is less than 1000 FT clearance; and my brand of GPS is very popular in the general aviation fleet. I would recommend Houston departure change their procedures to keep aircraft 1000 FT above or; given headings away from -- the huge antennae farm.

Data retrieved from NASA's ASRS site as of April 2012 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.

IFR PA28 departure from hou received GPWS warning; initially assigned 3000 ft on IDU3 SID and then issued 220 vector; reporter alleging ATC's heading and altitude caused GPWS activation.