®
ENGINEERING COMPANY INC.
Route 145, Winthrop Road,
Chester, Connecticut 06412
Phone: (860) 526-9504
Fax: (860) 526-2009
Internet: www.whelen.com
Sales/Service e-mail: aviation@whelen.com
Installati on Guide:
Model 70905( )-series
Model 7090500
P/N:01-0770905-00
LED Flashing Anti-Collision
Light Assembly
TSO-C96a CLASS I
APPROVED
MADE IN THE U.S.A.
OPERATING INSTRUCTIONS:
Operational Voltage: . . . . . . . . .28 VDC
Average Input Current: . . . . . . .0.45 Amps
Peak Input Current: . . . . . . . . . .2.5 Amps @ .25 Seconds
EQUIPMENT LIMITATIONS:
Rotorcraft for which type certificate was applied for after April 1,
1957 to August 11,1971:
The anti-collision system must produce a minimum of 100 effective
candelas in Aviation Red or White, 360° around the vertical axis, 30°
above and below the horizontal plane. A single beacon will meet this
requirement.
Rotorcraft for which type certificate was applied for after August 11,
1971 to February 5, 1976:
The anti-collision system must produce a minimum of 400 effective
candelas in Aviation Red or White, 360° around the vertical axis, 30°
above and below the horizon tal plane. This beacon does not meet this
requirement.
Rotorcraft for which type certificate was applied for after February
5, 1976:
The anti-collision system must produce a minimum of 150 effective
candelas in Aviation Red, 360° aro und the vertical axis, 30° above and
below the horizontal plane. A single beacon will meet this requirement.
CONTINUED AIRWORTHINESS: The 70905 series LED anti-collision
light assembly is de si gn ed wi th 10 ve rtica l colu mn s co nsi stin g of 3 L E Ds
each. Should any one LE D or any vertical colu mn fail, the unit must be
repaired or replaced.
INSTALLATION PROCEDURES: The following information is to assist in
the installation of a Whelen LED Flashing Anti-collision Light System.
1. The installation procedure described in the following text will be
confined to a single light installation, but is identical for multiple light
installations.
2. Using the “suggested mounting hole pattern” prepare the aircraft for
means to secure the LED Flashing Anti-collision Light assembly.
3. 28 VDC (+) and (-) ground leads equipped with an appropriate
sized breaker to be supplied to the LED Flashing Anti-collision
Light Assembly System. Both leads must be connected by an
approved FAA connection. Insure that the wire leads and the
pressure venting tu be ar e all clear of any obstru ctions and ty-wrap
as required. The pressure venting tube may be trimmed to
minimum length of 1” from base.
4. Install the light assembly by first removing the lens. Insert the
appropriate hardwa re through the counter- bored holes, secu re the
assembly and re-install the lens screws with 5-7 in./ lbs. torque.
5. Check all avionics systems for interference from this installation.
6. A flight check should be performed by a properly certified pilot.
Aviation
The conditions and tests required for TSO approval of this
article are minimum performance standards. It is the
responsibility of those installing this article either on or
within a specific type or class of aircraft to determine that
the aircraft installation conditions are within the TSO
standards. TSO articles must have separate approval for
installation in aircraft. The article may be installed only if
performed under 14 CFR part 43 or the applicable
airworthiness requirements.
7. All inverted (bott om) mounted units shall re quire waterproofing of
the mounting hardware. An application of single-part silicone (RTV)
or equivalent applied over top of the mounting hardware, after
installation, is recomm ended. Ref erence page 2 fo r an illustra tion.
Inverted and/or standard mounted units, when necessary, may
require waterproofing around any open area where water could get
in. Specifically, the lens to the flasher base assembly, and the
flasher base assembly to the aircraft. Note: It is permissable to drill
a 1/8” hole in the center of the lens for bottom mount units.
8. Update aircraft recor ds, complete Form 337 and obtain FAA field
approval for installation.
3.66
4.04±.06
MFG Label
(+)28VDC White 18GA
Teflon Wire 18"LG
(-)Ground Black 18GA
Teflon Wire 18"LG
Teflon Tube 18GA
(Pressure Venting)
©2003 Whelen Engineering Company Inc.
Form No.13773G (080305)
Page 1
Lens
P/N: 68-4990257-30
Screw
P/N: 14-062216-05M
Gasket
P/N: 38-0250843-00
Model
7090500
“RTV” required after hardware installation
for inverted (bottom) mounted units
Part Number
01-0770905-00
Description
28VDC, No Connector
3.190”
120°
120°
3x#6-32 MTG
1.00” Clearance for wires
Suggested Mounting Hole Pattern
Page 2