Warnings; Anomaly Reporting - PSC 2000781J MkII MLB Operating Procedure

4. Warnings

Violating any of the below shall void PSC Document 1001015 MLB Warranty.
1. All technicians completing this procedure shall be trained directly by PSC and given authority to operate their
specific Lightband(s) via PSC Document 3000224 MLB Training Record.
2. The Lightband shall only be operated using this procedure. This procedure shall be filled out for every
operation of the Lightband. Steps shall not be skipped or modified.
3. If a Lightband ever fails to operate correctly, PSC shall be contacted for recommendations and
troubleshooting techniques. Subsequent operations shall not be attempted without first understanding the
cause of the failure. See section 5 Anomaly Reporting for instructions.
4. All fasteners shall be used when attaching the Lightband to adjoining structures. Fasteners shall not be
omitted from any mounting hole in the Lightband.
5. Never power the Lightband in the stow direction without the Upper Ring mated per Section 8. This would
cause damage by repeatedly slamming the MBA drivetrain against a hard stop at high speed and force.
6. Objects which may inhibit proper stowing shall not be placed between the Lightband flanges. The tolerance
on the pre-stowed Lightband height is not the same as the stowed tolerance. Common potential objects
include wiring harnesses and height gages.
7. The Upper Ring shall be physically separated from the Lower Ring after every deployment. A stow operation
shall not be attempted without first inspecting the Lightband.
8. Both motors shall always be powered when operating the Lightband.
9. The Lightband shall only be stowed within the temperature range of 10 to 32 °C (50 to 90 °F).
10. PSC sends power to both motors simultaneously (via a single relay) in all operations. The customer may
power each motor via separate circuits provided the timing is synchronized within 0.005 s. This applies to
power on and power off.

5. Anomaly Reporting

If an anomaly occurs, contact PSC immediately. PSC will attempt to respond in a timely manner.
To facilitate the review of data, avoid confusion, and expedite response, PSC requests the following:
1. Stop immediately and maintain the existing configuration (if safe).
2. Thoroughly document the state of the Lightband with pictures and notes. Verify the quality and focus of every
picture prior to sending.
3. Provide the three prior operation's electrical profiles (if applicable to anomaly) as an Excel file. Ensure all data
is properly formatted, titled, graphed and labeled. Sending only the raw oscilloscope .CSV files will increase
PSC's response time. Ensure all date labels correspond to the actual event date.
4. Provide a copy of the as-run procedure.
5. Provide any relevant operation details including, but not limited to:
a) Adjoining structures. To what is the Lightband bolted?
b) How many Lightband operations have been performed?
c) Reason for operation. Was it an environmental test, avionics verification, integration, etc.? This informs
potential failure modes.
d) Are all components accessible? Are there any access restrictions? Is the Lightband in a clean room?
PSC Proprietary 2000781J MkII MLB Operating Procedure Page 12 of 50