Whelen 7090504 User Manual

3 x #6-32 TAP .31 DEEP
MOUNTING HOLES

CONNECTOR
MIL - C - 38999 SERIES III
20FA98PN

1.75

1.28

0.92

0.35

4.04 ± .06

5.94

5.84

0.10

115°

(30°)

3.66

115°

0.156 THRU
(VENT)

CONN. HOUSING

2.88 .032 THICK

TYPICAL MOUNTING
HOLE PATTERN

BOTTOM VIEW

®

ENGINEERING COMPANY INC.

MADE IN THE U.S.A.

51 Winthrop Road
Chester, Connecticut 06412-0684
Phone: [phone]
Fax: [phone]
Internet: www.whelen.com
Sales/Service e-mail: [e-mail]

Installation Guide:

Model 70905( )-series

Model 7090504

P/N:01-0770905-04

LED Flashing Anti-Collision

Light Assembly

OPERATING INSTRUCTIONS:

Normal Operational Voltage: . . . 28 VDC

(Operational from 24-32 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 t he horizontal 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° around the vertical
axis, 30° above and below the horizontal plane. A single
beacon will meet this requirement.
Certain types of installations may require additional testing.

CONTINUED AIRWORTHINESS: The 70905 series LED anti­collision light assembly is designed with 5 columns consisting of
5 LEDs each, and 5 columns consisting of 4 LEDs each. Should

Aviation

any one LED or any vertical column fail, the unit must be
repaired or replaced.

NOTE: To reduce eye strain, use an optical filter suc h as dark
glasses or a blue covering dome during LED inspection.

Inspect the lens. Replace if there is any excessive scratching,
pitting, discoloration or cracking.

INSTALLATION PROCEDURES: The following information is
to assist in the installation of a Whelen LED Flashing Anti­collision Light System.

1. The installation procedure described in the following text

2. Prepare the aircraft for means to secure the LED Flashing

3. 28 VDC (+) and (-) ground leads equipped with an

©2004 Whelen Engineering Company Inc.
Form No.13950C (020613)

will be confined to a single li ght in stallation, but is identic al
for multiple light installations.

Anti-collision Light assembly (see reference AC 43.13-2A
Chapter 4)

appropriate sized breaker to be supplied to the LED
Flashing Anti-collisio n Light Assembly System. Both leads
must be connected by an approved FAA connection.
Insure that the wire leads are all clear of any obs tructions
and ty-wrap as required.

TSO-C96a CLASS I
APPROVED

Page 1

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.

4. Install the light assembly by securing to aircraft using the
appropriate, approved hardware. Note: Lens mounting screws
installed with 5-7 in./lbs. of torque.

5. Check all avionics systems for interference from this
installation.

6. A flight check should be performed by a properly certified pilot.

7. All inverted (bottom) mounted units shall require waterproofing
of the mounting hardware. An applicati on of si ngle-part silic one
(RTV) or equivalent applied over top of the mounting hardware,
after installation, is recommended. Reference page 2 for an
illustration. 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 permissible to drill a 1/8” drain hole in the center of
the lens for bottom mount units.

8. Update aircraft records, complete Form 337 and obtain FAA
field approval for installation, as necessary.

Model

7090504

Part Number

01-0770905-04

Description

28VDC, MS Connector

Lens
P/N: 68-4990257-30

Screw
P/N: 14-062216-05M

Gasket
P/N: 38-0250843-00

Mounting Adaptor Plate
P/N: 07-770989-110

LED Module (10 sided)
P/N: 01-0271777-04

BLACK

MS CONNECTOR WIRING

(REAR VIEW)

WHITE

A

C

B

“RTV” required after hardware installation
for inverted (bottom) mounted units

Typical Mounting Hole Pattern

(3) #6-32 x 3/8

Thread

1.00” Clearance for wires

115°

115°

Page 2