1. Session VIII Discrepancy

2. Presentation Objectives To acquire a general knowledge of the responsibilities of the Auxiliary on how discrepancies and verification checks are performed. To become familiar with the three categories of AtoN discrepancies. To learn how to recognize a discrepancy on an aid to navigation.

3. Discrepancy Categories Critical Urgent Routine

4. Definition of Critical This term is used for those discrepancies where failure to report by the most expeditious means may result in loss of life or damage to a vessel.

5. Critical Discrepancies a.Aid totally covered or shrouded in ice. b.Light signal showing improper characteristics or rhythm. c.Light signal obscured or extinguished. d.Sinking or submerged buoy. e.Buoy off station, adrift, missing, capsized or stranded. f.Vandalism of aids. g.Aids damaged by vessel collision. h.Collapsed bridge structures. i.RAdar beaCON not operating. j.Lantern damaged

6. Definition of Urgent This term is used for those discrepancies where failure to report will result in no danger of loss of life or vessel damage, but may contribute to a grounding or a stranding.

7. Urgent Discrepancies a.Daymark(s) missing or damaged by causes other than vandalism. b.Sound signal failure. Bell, Gong, Horn, etc. c.Light burning dim or showing reduced intensity. d.Lights partly or totally obscured by dayboards. e.Bridge light outages. f.Inoperative draw on swing, lift or retractable bridges.

8. Definition of Routine Term is used for those discrepancies where failure to report will result in very low likelihood of grounding or stranding, but corrective maintenance is necessary.

9. Routine Discrepancies a.Aid obscured by foliage or other objects that should be removed. b.Faded daymarks, whether located on aids in the water or on the shore. c.Extensive bird fowling on aid. d.Delaminating of Dayboards. e.Dayboard missing. f. Improper dayboards per Light List. g. Extensive deterioration or rotting of supports. h. Leaning structure— more than 15 degrees. And there’s more...

10. Routine Discrepancies Routine Discrepancies i.Missing vent valve. j.Bird nest on aid that is obstructing light or panels k.Retroreflective material is peeling, missing or inadequate. l.Numbers are obliterated or not easily read or identified. m.Peeling paint interfering with the ability to see the aid or recognize its proper color. n.Whistle, tapper, or bell missing.

11. AIDDEFECTSAIDDEFECTS

12. MOREISSUESMOREISSUES

13. Small Lights and Daymarks

14. Don’t get too close to this ATON! Stay in the channel.

15. Check after storms. Panels are designed to break away so that high winds or waves will not take out the pile.

16. Panel Symbol KWR Main panel is white. Center stripe is red.

17. Operational Requirements Contrast Vegetation Background lights

18. Inspection and Maintenance Dayboard surface and backing materials will deteriorate due to the effects of weathering by: wind, rain, freezing temperatures, and sunlight.

19. Inspection and Maintenance Types of delamination are: Cracking, Peeling. and Fading.

20. Backing Material Delamination should not have progressed over more than 25 percent of the backing material. Material should not be sufficiently warped to visibly detract from the signal. Mounting points should not be softened or deteriorated to the degree that the board may come loose during a storm.

21. Films, Numbers, Letters, & Borders Delamination of the film should not progress over 10% of the surface area. Material should not be cracked, checked or abraded so as to provide a dull or roughened top surface. Material attached should not have peeled over more than 10% of the surface area.

22. Fading There is no practical way to measure fading. Replacement is based on the judgment of servicing personnel. It must display the intended signal until the next scheduled service.

23. END OF SESSION VIII